Move timezones to npm package and convert util-frontend.js to typescript

.gitignore

@@ -7,4 +7,5 @@ dist-ssr
 
 /data
 !/data/.gitkeep
+/uptime-kuma
 .vscode

package-lock.json

@@ -1,12 +1,12 @@
 {
     "name": "uptime-kuma",
-    "version": "1.5.2",
+    "version": "1.6.0",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "uptime-kuma",
-            "version": "1.5.2",
+            "version": "1.6.0",
             "license": "MIT",
             "dependencies": {
                 "@fortawesome/fontawesome-svg-core": "^1.2.36",
@@ -37,6 +37,7 @@
                 "socket.io-client": "^4.2.0",
                 "sqlite3": "github:mapbox/node-sqlite3#593c9d",
                 "tcp-ping": "^0.1.1",
+                "timezones-list": "^3.0.1",
                 "v-pagination-3": "^0.1.6",
                 "vue": "^3.2.8",
                 "vue-chart-3": "^0.5.7",
@@ -4460,6 +4461,7 @@
             "version": "3.1.25",
             "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.25.tgz",
             "integrity": "sha512-rdwtIXaXCLFAQbnfqDRnI6jaRHp9fTcYBjtFKE8eezcZ7LuLjhUaQGNeMXf1HmRoCH32CLz6XwX0TtxEOS/A3Q==",
+            "dev": true,
             "bin": {
                 "nanoid": "bin/nanoid.cjs"
             },
@@ -6307,6 +6309,7 @@
         "node_modules/sqlite3": {
             "version": "5.0.2",
             "resolved": "git+ssh://git@github.com/mapbox/node-sqlite3.git#593c9d498be2510d286349134537e3bf89401c4a",
+            "integrity": "sha512-jUoUHizVh+QCulAEPid3qxX+TunsNMDFDC3TdB/+33OEx8Ud3IhbfrXU+MNnhAR9p4Sk5X93LkoXure8VVGrQA==",
             "hasInstallScript": true,
             "license": "BSD-3-Clause",
             "dependencies": {
@@ -6933,6 +6936,11 @@
                 "node": ">=8"
             }
         },
+        "node_modules/timezones-list": {
+            "version": "3.0.1",
+            "resolved": "https://registry.npmjs.org/timezones-list/-/timezones-list-3.0.1.tgz",
+            "integrity": "sha512-yfOzyuVwzgD0LkldD3Epkr+JUdUIxEUL147Fa6ZgG/23KU28iOv3e3M7vQOCFMPyopAhDX7dqOLWttIP7tkTKg=="
+        },
         "node_modules/to-fast-properties": {
             "version": "2.0.0",
             "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
@@ -7310,6 +7318,64 @@
                 }
             }
         },
+        "node_modules/vue-chart-3/node_modules/@vue/reactivity": {
+            "version": "3.2.11",
+            "resolved": "https://registry.npmjs.org/@vue/reactivity/-/reactivity-3.2.11.tgz",
+            "integrity": "sha512-hEQstxPQbgGZq5qApzrvbDmRdK1KP96O/j4XrwT8fVkT1ytkFs4fH2xNEh9QKwXfybbQkLs77W7OfXCv5o6qbA==",
+            "dependencies": {
+                "@vue/shared": "3.2.11"
+            }
+        },
+        "node_modules/vue-chart-3/node_modules/@vue/runtime-core": {
+            "version": "3.2.11",
+            "resolved": "https://registry.npmjs.org/@vue/runtime-core/-/runtime-core-3.2.11.tgz",
+            "integrity": "sha512-horlxjWwSvModC87WdsWswzzHE5IexmKkQA65S5vFgP5hLUBW+HRyScDeuB/RRcFmqnf+ozacNCfap0kqcpODw==",
+            "dependencies": {
+                "@vue/reactivity": "3.2.11",
+                "@vue/shared": "3.2.11"
+            }
+        },
+        "node_modules/vue-chart-3/node_modules/@vue/runtime-dom": {
+            "version": "3.2.11",
+            "resolved": "https://registry.npmjs.org/@vue/runtime-dom/-/runtime-dom-3.2.11.tgz",
+            "integrity": "sha512-cOK1g0INdiCbds2xrrJKrrN+pDHuLz6esUs/crdEiupDuX7IeiMbdqrAQCkYHp5P1KLWcbGlkmwfVD7HQGii0Q==",
+            "dependencies": {
+                "@vue/runtime-core": "3.2.11",
+                "@vue/shared": "3.2.11",
+                "csstype": "^2.6.8"
+            }
+        },
+        "node_modules/vue-chart-3/node_modules/@vue/runtime-dom/node_modules/csstype": {
+            "version": "2.6.17",
+            "resolved": "https://registry.npmjs.org/csstype/-/csstype-2.6.17.tgz",
+            "integrity": "sha512-u1wmTI1jJGzCJzWndZo8mk4wnPTZd1eOIYTYvuEyOQGfmDl3TrabCCfKnOC86FZwW/9djqTl933UF/cS425i9A=="
+        },
+        "node_modules/vue-chart-3/node_modules/@vue/shared": {
+            "version": "3.2.11",
+            "resolved": "https://registry.npmjs.org/@vue/shared/-/shared-3.2.11.tgz",
+            "integrity": "sha512-ovfXAsSsCvV9JVceWjkqC/7OF5HbgLOtCWjCIosmPGG8lxbPuavhIxRH1dTx4Dg9xLgRTNLvI3pVxG4ItQZekg=="
+        },
+        "node_modules/vue-chart-3/node_modules/csstype": {
+            "version": "3.0.8",
+            "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.0.8.tgz",
+            "integrity": "sha512-jXKhWqXPmlUeoQnF/EhTtTl4C9SnrxSH/jZUih3jmO6lBKr99rP3/+FmrMj4EFpOXzMtXHAZkd3x0E6h6Fgflw=="
+        },
+        "node_modules/vue-chart-3/node_modules/lodash": {
+            "version": "4.17.21",
+            "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+            "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+        },
+        "node_modules/vue-chart-3/node_modules/nanoid": {
+            "version": "3.1.25",
+            "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.25.tgz",
+            "integrity": "sha512-rdwtIXaXCLFAQbnfqDRnI6jaRHp9fTcYBjtFKE8eezcZ7LuLjhUaQGNeMXf1HmRoCH32CLz6XwX0TtxEOS/A3Q==",
+            "bin": {
+                "nanoid": "bin/nanoid.cjs"
+            },
+            "engines": {
+                "node": "^10 || ^12 || ^13.7 || ^14 || >=15.0.1"
+            }
+        },
         "node_modules/vue-confirm-dialog": {
             "version": "1.0.2",
             "resolved": "https://registry.npmjs.org/vue-confirm-dialog/-/vue-confirm-dialog-1.0.2.tgz",
@@ -7974,7 +8040,8 @@
         "@fortawesome/vue-fontawesome": {
             "version": "3.0.0-4",
             "resolved": "https://registry.npmjs.org/@fortawesome/vue-fontawesome/-/vue-fontawesome-3.0.0-4.tgz",
-            "integrity": "sha512-dQVhhMRcUPCb0aqk5ohm0KGk5OJ7wFZ9aYapLzJB3Z+xs7LhkRWLTb87reelUAG5PFDjutDAXuloT9hi6cz72A=="
+            "integrity": "sha512-dQVhhMRcUPCb0aqk5ohm0KGk5OJ7wFZ9aYapLzJB3Z+xs7LhkRWLTb87reelUAG5PFDjutDAXuloT9hi6cz72A==",
+            "requires": {}
         },
         "@humanwhocodes/config-array": {
             "version": "0.5.0",
@@ -8368,7 +8435,8 @@
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             "resolved": "https://registry.npmjs.org/@vitejs/plugin-vue/-/plugin-vue-1.6.0.tgz",
             "integrity": "sha512-n3i8htn8pTg9M+kM3cnEfsPZx/6ngInlTroth6fA1LQTJq5aTVQ8ggaE5pPoAy9vCgHPtcaXMzwpldhqRAkebQ==",
-            "dev": true
+            "dev": true,
+            "requires": {}
         },
         "@vue/compiler-core": {
             "version": "3.2.8",
@@ -8501,7 +8569,8 @@
             "version": "5.3.2",
             "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.3.2.tgz",
             "integrity": "sha512-rq9s+JNhf0IChjtDXxllJ7g41oZk5SlXtp0LHwyA5cejwn7vKmKp4pPri6YEePv2PU65sAsegbXtIinmDFDXgQ==",
-            "dev": true
+            "dev": true,
+            "requires": {}
         },
         "agent-base": {
             "version": "6.0.2",
@@ -8856,7 +8925,8 @@
         "bootstrap": {
             "version": "5.1.0",
             "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-5.1.0.tgz",
-            "integrity": "sha512-bs74WNI9BgBo3cEovmdMHikSKoXnDgA6VQjJ7TyTotU6L7d41ZyCEEelPwkYEzsG/Zjv3ie9IE3EMAje0W9Xew=="
+            "integrity": "sha512-bs74WNI9BgBo3cEovmdMHikSKoXnDgA6VQjJ7TyTotU6L7d41ZyCEEelPwkYEzsG/Zjv3ie9IE3EMAje0W9Xew==",
+            "requires": {}
         },
         "brace-expansion": {
             "version": "1.1.11",
@@ -8970,7 +9040,8 @@
         "chartjs-adapter-dayjs": {
             "version": "1.0.0",
             "resolved": "https://registry.npmjs.org/chartjs-adapter-dayjs/-/chartjs-adapter-dayjs-1.0.0.tgz",
-            "integrity": "sha512-EnbVqTJGFKLpg1TROLdCEufrzbmIa2oeLGx8O2Wdjw2EoMudoOo9+YFu+6CM0Z0hQ/v3yq/e/Y6efQMu22n8Jg=="
+            "integrity": "sha512-EnbVqTJGFKLpg1TROLdCEufrzbmIa2oeLGx8O2Wdjw2EoMudoOo9+YFu+6CM0Z0hQ/v3yq/e/Y6efQMu22n8Jg==",
+            "requires": {}
         },
         "chokidar": {
             "version": "3.5.2",
@@ -10262,7 +10333,8 @@
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             "resolved": "https://registry.npmjs.org/icss-utils/-/icss-utils-5.1.0.tgz",
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-            "dev": true
+            "dev": true,
+            "requires": {}
         },
         "ignore": {
             "version": "4.0.6",
@@ -10989,7 +11061,8 @@
         "nanoid": {
             "version": "3.1.25",
             "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.25.tgz",
-            "integrity": "sha512-rdwtIXaXCLFAQbnfqDRnI6jaRHp9fTcYBjtFKE8eezcZ7LuLjhUaQGNeMXf1HmRoCH32CLz6XwX0TtxEOS/A3Q=="
+            "integrity": "sha512-rdwtIXaXCLFAQbnfqDRnI6jaRHp9fTcYBjtFKE8eezcZ7LuLjhUaQGNeMXf1HmRoCH32CLz6XwX0TtxEOS/A3Q==",
+            "dev": true
         },
         "natural-compare": {
             "version": "1.4.0",
@@ -11463,7 +11536,8 @@
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-            "dev": true
+            "dev": true,
+            "requires": {}
         },
         "postcss-modules-local-by-default": {
             "version": "4.0.0",
@@ -11782,7 +11856,8 @@
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             "resolved": "https://registry.npmjs.org/postcss-syntax/-/postcss-syntax-0.36.2.tgz",
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-            "dev": true
+            "dev": true,
+            "requires": {}
         },
         "postcss-value-parser": {
             "version": "4.1.0",
@@ -12678,7 +12753,8 @@
             "version": "5.0.0",
             "resolved": "https://registry.npmjs.org/stylelint-config-recommended/-/stylelint-config-recommended-5.0.0.tgz",
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-            "dev": true
+            "dev": true,
+            "requires": {}
         },
         "stylelint-config-standard": {
             "version": "22.0.0",
@@ -12899,6 +12975,11 @@
             "resolved": "https://registry.npmjs.org/tildify/-/tildify-2.0.0.tgz",
             "integrity": "sha512-Cc+OraorugtXNfs50hU9KS369rFXCfgGLpfCfvlc+Ud5u6VWmUQsOAa9HbTvheQdYnrdJqqv1e5oIqXppMYnSw=="
         },
+        "timezones-list": {
+            "version": "3.0.1",
+            "resolved": "https://registry.npmjs.org/timezones-list/-/timezones-list-3.0.1.tgz",
+            "integrity": "sha512-yfOzyuVwzgD0LkldD3Epkr+JUdUIxEUL147Fa6ZgG/23KU28iOv3e3M7vQOCFMPyopAhDX7dqOLWttIP7tkTKg=="
+        },
         "to-fast-properties": {
             "version": "2.0.0",
             "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
@@ -13176,17 +13257,75 @@
                 "lodash": "latest",
                 "nanoid": "latest",
                 "vue-demi": "^0.10.1"
+            },
+            "dependencies": {
+                "@vue/reactivity": {
+                    "version": "3.2.11",
+                    "resolved": "https://registry.npmjs.org/@vue/reactivity/-/reactivity-3.2.11.tgz",
+                    "integrity": "sha512-hEQstxPQbgGZq5qApzrvbDmRdK1KP96O/j4XrwT8fVkT1ytkFs4fH2xNEh9QKwXfybbQkLs77W7OfXCv5o6qbA==",
+                    "requires": {
+                        "@vue/shared": "3.2.11"
+                    }
+                },
+                "@vue/runtime-core": {
+                    "version": "3.2.11",
+                    "resolved": "https://registry.npmjs.org/@vue/runtime-core/-/runtime-core-3.2.11.tgz",
+                    "integrity": "sha512-horlxjWwSvModC87WdsWswzzHE5IexmKkQA65S5vFgP5hLUBW+HRyScDeuB/RRcFmqnf+ozacNCfap0kqcpODw==",
+                    "requires": {
+                        "@vue/reactivity": "3.2.11",
+                        "@vue/shared": "3.2.11"
+                    }
+                },
+                "@vue/runtime-dom": {
+                    "version": "3.2.11",
+                    "resolved": "https://registry.npmjs.org/@vue/runtime-dom/-/runtime-dom-3.2.11.tgz",
+                    "integrity": "sha512-cOK1g0INdiCbds2xrrJKrrN+pDHuLz6esUs/crdEiupDuX7IeiMbdqrAQCkYHp5P1KLWcbGlkmwfVD7HQGii0Q==",
+                    "requires": {
+                        "@vue/runtime-core": "3.2.11",
+                        "@vue/shared": "3.2.11",
+                        "csstype": "^2.6.8"
+                    },
+                    "dependencies": {
+                        "csstype": {
+                            "version": "2.6.17",
+                            "resolved": "https://registry.npmjs.org/csstype/-/csstype-2.6.17.tgz",
+                            "integrity": "sha512-u1wmTI1jJGzCJzWndZo8mk4wnPTZd1eOIYTYvuEyOQGfmDl3TrabCCfKnOC86FZwW/9djqTl933UF/cS425i9A=="
+                        }
+                    }
+                },
+                "@vue/shared": {
+                    "version": "3.2.11",
+                    "resolved": "https://registry.npmjs.org/@vue/shared/-/shared-3.2.11.tgz",
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+                },
+                "csstype": {
+                    "version": "3.0.8",
+                    "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.0.8.tgz",
+                    "integrity": "sha512-jXKhWqXPmlUeoQnF/EhTtTl4C9SnrxSH/jZUih3jmO6lBKr99rP3/+FmrMj4EFpOXzMtXHAZkd3x0E6h6Fgflw=="
+                },
+                "lodash": {
+                    "version": "4.17.21",
+                    "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+                    "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+                },
+                "nanoid": {
+                    "version": "3.1.25",
+                    "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.25.tgz",
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+                }
             }
         },
         "vue-confirm-dialog": {
             "version": "1.0.2",
             "resolved": "https://registry.npmjs.org/vue-confirm-dialog/-/vue-confirm-dialog-1.0.2.tgz",
-            "integrity": "sha512-gTo1bMDWOLd/6ihmWv8VlPxhc9QaKoE5YqlsKydUOfrrQ3Q3taljF6yI+1TMtAtJLrvZ8DYrePhgBhY1VCJzbQ=="
+            "integrity": "sha512-gTo1bMDWOLd/6ihmWv8VlPxhc9QaKoE5YqlsKydUOfrrQ3Q3taljF6yI+1TMtAtJLrvZ8DYrePhgBhY1VCJzbQ==",
+            "requires": {}
         },
         "vue-demi": {
             "version": "0.10.1",
             "resolved": "https://registry.npmjs.org/vue-demi/-/vue-demi-0.10.1.tgz",
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+            "requires": {}
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         "vue-eslint-parser": {
             "version": "7.10.0",
@@ -13249,7 +13388,8 @@
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             "resolved": "https://registry.npmjs.org/vue-toastification/-/vue-toastification-2.0.0-rc.1.tgz",
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+            "integrity": "sha512-hjauv/FyesNZdwcr5m1SCyvu1JmlB+Ts5bTptDLDmsYYlj6Oqv8NYakiElpCF+Abwkn9J/AChh6FwkTL1HOb7Q==",
+            "requires": {}
         },
         "which": {
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@@ -13294,7 +13434,8 @@
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+            "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A==",
+            "requires": {}
         },
         "xmlhttprequest-ssl": {
             "version": "2.0.0",

package.json

@@ -64,6 +64,7 @@
         "socket.io-client": "^4.2.0",
         "sqlite3": "github:mapbox/node-sqlite3#593c9d",
         "tcp-ping": "^0.1.1",
+        "timezones-list": "^3.0.1",
         "v-pagination-3": "^0.1.6",
         "vue": "^3.2.8",
         "vue-chart-3": "^0.5.7",

src/util-frontend.js

@@ -1,404 +0,0 @@
-import dayjs from "dayjs";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
-
-dayjs.extend(utc)
-dayjs.extend(timezone)
-
-function getTimezoneOffset(timeZone) {
-    const now = new Date();
-    const tzString = now.toLocaleString("en-US", {
-        timeZone,
-    });
-    const localString = now.toLocaleString("en-US");
-    const diff = (Date.parse(localString) - Date.parse(tzString)) / 3600000;
-    const offset = diff + now.getTimezoneOffset() / 60;
-    return -offset;
-}
-
-// From: https://stackoverflow.com/questions/38399465/how-to-get-list-of-all-timezones-in-javascript
-// TODO: Move to separate file
-const aryIannaTimeZones = [
-    "Europe/Andorra",
-    "Asia/Dubai",
-    "Asia/Kabul",
-    "Europe/Tirane",
-    "Asia/Yerevan",
-    "Antarctica/Casey",
-    "Antarctica/Davis",
-    "Antarctica/Mawson",
-    "Antarctica/Palmer",
-    "Antarctica/Rothera",
-    "Antarctica/Syowa",
-    "Antarctica/Troll",
-    "Antarctica/Vostok",
-    "America/Argentina/Buenos_Aires",
-    "America/Argentina/Cordoba",
-    "America/Argentina/Salta",
-    "America/Argentina/Jujuy",
-    "America/Argentina/Tucuman",
-    "America/Argentina/Catamarca",
-    "America/Argentina/La_Rioja",
-    "America/Argentina/San_Juan",
-    "America/Argentina/Mendoza",
-    "America/Argentina/San_Luis",
-    "America/Argentina/Rio_Gallegos",
-    "America/Argentina/Ushuaia",
-    "Pacific/Pago_Pago",
-    "Europe/Vienna",
-    "Australia/Lord_Howe",
-    "Antarctica/Macquarie",
-    "Australia/Hobart",
-    "Australia/Currie",
-    "Australia/Melbourne",
-    "Australia/Sydney",
-    "Australia/Broken_Hill",
-    "Australia/Brisbane",
-    "Australia/Lindeman",
-    "Australia/Adelaide",
-    "Australia/Darwin",
-    "Australia/Perth",
-    "Australia/Eucla",
-    "Asia/Baku",
-    "America/Barbados",
-    "Asia/Dhaka",
-    "Europe/Brussels",
-    "Europe/Sofia",
-    "Atlantic/Bermuda",
-    "Asia/Brunei",
-    "America/La_Paz",
-    "America/Noronha",
-    "America/Belem",
-    "America/Fortaleza",
-    "America/Recife",
-    "America/Araguaina",
-    "America/Maceio",
-    "America/Bahia",
-    "America/Sao_Paulo",
-    "America/Campo_Grande",
-    "America/Cuiaba",
-    "America/Santarem",
-    "America/Porto_Velho",
-    "America/Boa_Vista",
-    "America/Manaus",
-    "America/Eirunepe",
-    "America/Rio_Branco",
-    "America/Nassau",
-    "Asia/Thimphu",
-    "Europe/Minsk",
-    "America/Belize",
-    "America/St_Johns",
-    "America/Halifax",
-    "America/Glace_Bay",
-    "America/Moncton",
-    "America/Goose_Bay",
-    "America/Blanc-Sablon",
-    "America/Toronto",
-    "America/Nipigon",
-    "America/Thunder_Bay",
-    "America/Iqaluit",
-    "America/Pangnirtung",
-    "America/Atikokan",
-    "America/Winnipeg",
-    "America/Rainy_River",
-    "America/Resolute",
-    "America/Rankin_Inlet",
-    "America/Regina",
-    "America/Swift_Current",
-    "America/Edmonton",
-    "America/Cambridge_Bay",
-    "America/Yellowknife",
-    "America/Inuvik",
-    "America/Creston",
-    "America/Dawson_Creek",
-    "America/Fort_Nelson",
-    "America/Vancouver",
-    "America/Whitehorse",
-    "America/Dawson",
-    "Indian/Cocos",
-    "Europe/Zurich",
-    "Africa/Abidjan",
-    "Pacific/Rarotonga",
-    "America/Santiago",
-    "America/Punta_Arenas",
-    "Pacific/Easter",
-    "Asia/Shanghai",
-    "Asia/Urumqi",
-    "America/Bogota",
-    "America/Costa_Rica",
-    "America/Havana",
-    "Atlantic/Cape_Verde",
-    "America/Curacao",
-    "Indian/Christmas",
-    "Asia/Nicosia",
-    "Asia/Famagusta",
-    "Europe/Prague",
-    "Europe/Berlin",
-    "Europe/Copenhagen",
-    "America/Santo_Domingo",
-    "Africa/Algiers",
-    "America/Guayaquil",
-    "Pacific/Galapagos",
-    "Europe/Tallinn",
-    "Africa/Cairo",
-    "Africa/El_Aaiun",
-    "Europe/Madrid",
-    "Africa/Ceuta",
-    "Atlantic/Canary",
-    "Europe/Helsinki",
-    "Pacific/Fiji",
-    "Atlantic/Stanley",
-    "Pacific/Chuuk",
-    "Pacific/Pohnpei",
-    "Pacific/Kosrae",
-    "Atlantic/Faroe",
-    "Europe/Paris",
-    "Europe/London",
-    "Asia/Tbilisi",
-    "America/Cayenne",
-    "Africa/Accra",
-    "Europe/Gibraltar",
-    "America/Godthab",
-    "America/Danmarkshavn",
-    "America/Scoresbysund",
-    "America/Thule",
-    "Europe/Athens",
-    "Atlantic/South_Georgia",
-    "America/Guatemala",
-    "Pacific/Guam",
-    "Africa/Bissau",
-    "America/Guyana",
-    "Asia/Hong_Kong",
-    "America/Tegucigalpa",
-    "America/Port-au-Prince",
-    "Europe/Budapest",
-    "Asia/Jakarta",
-    "Asia/Pontianak",
-    "Asia/Makassar",
-    "Asia/Jayapura",
-    "Europe/Dublin",
-    "Asia/Jerusalem",
-    "Asia/Kolkata",
-    "Indian/Chagos",
-    "Asia/Baghdad",
-    "Asia/Tehran",
-    "Atlantic/Reykjavik",
-    "Europe/Rome",
-    "America/Jamaica",
-    "Asia/Amman",
-    "Asia/Tokyo",
-    "Africa/Nairobi",
-    "Asia/Bishkek",
-    "Pacific/Tarawa",
-    "Pacific/Enderbury",
-    "Pacific/Kiritimati",
-    "Asia/Pyongyang",
-    "Asia/Seoul",
-    "Asia/Almaty",
-    "Asia/Qyzylorda",
-    "Asia/Aqtobe",
-    "Asia/Aqtau",
-    "Asia/Atyrau",
-    "Asia/Oral",
-    "Asia/Beirut",
-    "Asia/Colombo",
-    "Africa/Monrovia",
-    "Europe/Vilnius",
-    "Europe/Luxembourg",
-    "Europe/Riga",
-    "Africa/Tripoli",
-    "Africa/Casablanca",
-    "Europe/Monaco",
-    "Europe/Chisinau",
-    "Pacific/Majuro",
-    "Pacific/Kwajalein",
-    "Asia/Yangon",
-    "Asia/Ulaanbaatar",
-    "Asia/Hovd",
-    "Asia/Choibalsan",
-    "Asia/Macau",
-    "America/Martinique",
-    "Europe/Malta",
-    "Indian/Mauritius",
-    "Indian/Maldives",
-    "America/Mexico_City",
-    "America/Cancun",
-    "America/Merida",
-    "America/Monterrey",
-    "America/Matamoros",
-    "America/Mazatlan",
-    "America/Chihuahua",
-    "America/Ojinaga",
-    "America/Hermosillo",
-    "America/Tijuana",
-    "America/Bahia_Banderas",
-    "Asia/Kuala_Lumpur",
-    "Asia/Kuching",
-    "Africa/Maputo",
-    "Africa/Windhoek",
-    "Pacific/Noumea",
-    "Pacific/Norfolk",
-    "Africa/Lagos",
-    "America/Managua",
-    "Europe/Amsterdam",
-    "Europe/Oslo",
-    "Asia/Kathmandu",
-    "Pacific/Nauru",
-    "Pacific/Niue",
-    "Pacific/Auckland",
-    "Pacific/Chatham",
-    "America/Panama",
-    "America/Lima",
-    "Pacific/Tahiti",
-    "Pacific/Marquesas",
-    "Pacific/Gambier",
-    "Pacific/Port_Moresby",
-    "Pacific/Bougainville",
-    "Asia/Manila",
-    "Asia/Karachi",
-    "Europe/Warsaw",
-    "America/Miquelon",
-    "Pacific/Pitcairn",
-    "America/Puerto_Rico",
-    "Asia/Gaza",
-    "Asia/Hebron",
-    "Europe/Lisbon",
-    "Atlantic/Madeira",
-    "Atlantic/Azores",
-    "Pacific/Palau",
-    "America/Asuncion",
-    "Asia/Qatar",
-    "Indian/Reunion",
-    "Europe/Bucharest",
-    "Europe/Belgrade",
-    "Europe/Kaliningrad",
-    "Europe/Moscow",
-    "Europe/Simferopol",
-    "Europe/Kirov",
-    "Europe/Astrakhan",
-    "Europe/Volgograd",
-    "Europe/Saratov",
-    "Europe/Ulyanovsk",
-    "Europe/Samara",
-    "Asia/Yekaterinburg",
-    "Asia/Omsk",
-    "Asia/Novosibirsk",
-    "Asia/Barnaul",
-    "Asia/Tomsk",
-    "Asia/Novokuznetsk",
-    "Asia/Krasnoyarsk",
-    "Asia/Irkutsk",
-    "Asia/Chita",
-    "Asia/Yakutsk",
-    "Asia/Khandyga",
-    "Asia/Vladivostok",
-    "Asia/Ust-Nera",
-    "Asia/Magadan",
-    "Asia/Sakhalin",
-    "Asia/Srednekolymsk",
-    "Asia/Kamchatka",
-    "Asia/Anadyr",
-    "Asia/Riyadh",
-    "Pacific/Guadalcanal",
-    "Indian/Mahe",
-    "Africa/Khartoum",
-    "Europe/Stockholm",
-    "Asia/Singapore",
-    "America/Paramaribo",
-    "Africa/Juba",
-    "Africa/Sao_Tome",
-    "America/El_Salvador",
-    "Asia/Damascus",
-    "America/Grand_Turk",
-    "Africa/Ndjamena",
-    "Indian/Kerguelen",
-    "Asia/Bangkok",
-    "Asia/Dushanbe",
-    "Pacific/Fakaofo",
-    "Asia/Dili",
-    "Asia/Ashgabat",
-    "Africa/Tunis",
-    "Pacific/Tongatapu",
-    "Europe/Istanbul",
-    "America/Port_of_Spain",
-    "Pacific/Funafuti",
-    "Asia/Taipei",
-    "Europe/Kiev",
-    "Europe/Uzhgorod",
-    "Europe/Zaporozhye",
-    "Pacific/Wake",
-    "America/New_York",
-    "America/Detroit",
-    "America/Kentucky/Louisville",
-    "America/Kentucky/Monticello",
-    "America/Indiana/Indianapolis",
-    "America/Indiana/Vincennes",
-    "America/Indiana/Winamac",
-    "America/Indiana/Marengo",
-    "America/Indiana/Petersburg",
-    "America/Indiana/Vevay",
-    "America/Chicago",
-    "America/Indiana/Tell_City",
-    "America/Indiana/Knox",
-    "America/Menominee",
-    "America/North_Dakota/Center",
-    "America/North_Dakota/New_Salem",
-    "America/North_Dakota/Beulah",
-    "America/Denver",
-    "America/Boise",
-    "America/Phoenix",
-    "America/Los_Angeles",
-    "America/Anchorage",
-    "America/Juneau",
-    "America/Sitka",
-    "America/Metlakatla",
-    "America/Yakutat",
-    "America/Nome",
-    "America/Adak",
-    "Pacific/Honolulu",
-    "America/Montevideo",
-    "Asia/Samarkand",
-    "Asia/Tashkent",
-    "America/Caracas",
-    "Asia/Ho_Chi_Minh",
-    "Pacific/Efate",
-    "Pacific/Wallis",
-    "Pacific/Apia",
-    "Africa/Johannesburg",
-];
-
-export function timezoneList() {
-
-    let result = [];
-
-    for (let timezone of aryIannaTimeZones) {
-
-        try {
-            let display = dayjs().tz(timezone).format("Z");
-
-            result.push({
-                name: `(UTC${display}) ${timezone}`,
-                value: timezone,
-                time: getTimezoneOffset(timezone),
-            })
-        } catch (e) {
-            console.error(e.message);
-            console.log("Skip this timezone")
-        }
-
-    }
-
-    result.sort((a, b) => {
-        if (a.time > b.time) {
-            return 1;
-        }
-
-        if (b.time > a.time) {
-            return -1;
-        }
-
-        return 0;
-    })
-
-    return result;
-}

src/util-frontend.ts

@@ -0,0 +1,54 @@
+import * as dayjs from "dayjs";
+import * as timezone from "dayjs/plugin/timezone";
+import * as utc from "dayjs/plugin/utc";
+import timezones from "timezones-list";
+
+dayjs.extend(utc)
+dayjs.extend(timezone)
+
+function getTimezoneOffset(timeZone) {
+    const now = new Date();
+    const tzString = now.toLocaleString("en-US", {
+        timeZone,
+    });
+    const localString = now.toLocaleString("en-US");
+    const diff = (Date.parse(localString) - Date.parse(tzString)) / 3600000;
+    const offset = diff + now.getTimezoneOffset() / 60;
+    return -offset;
+}
+
+export function timezoneList() {
+
+    let result = [];
+
+    for (let timezone of timezones) {
+
+        try {
+            let display = dayjs().tz(timezone.tzCode).format("Z");
+
+            result.push({
+                name: `(UTC${display}) ${timezone.tzCode}`,
+                value: timezone.tzCode,
+                time: getTimezoneOffset(timezone.tzCode),
+            })
+        } catch (e) {
+            console.error(e.message);
+            console.log("Skip this timezone")
+        }
+
+    }
+
+    result.sort((a, b) => {
+        if (a.time > b.time) {
+            return 1;
+        }
+
+        if (b.time > a.time) {
+            return -1;
+        }
+
+        return 0;
+    })
+
+    return result;
+}