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timerender: Add fallbacks for browser time zone detection.

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Signed-off-by: Anders Kaseorg <anders@zulip.com>
This commit is contained in:
Anders Kaseorg
2023-11-30 12:03:09 -08:00
committed by Tim Abbott
parent 9c7453c11e
commit 04a6696e33
2 changed files with 13 additions and 0 deletions
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12
web/src/timerender.ts
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@@ -19,6 +19,18 @@ import {user_settings} from "./user_settings";
let next_timerender_id = 0;
export let display_time_zone = new Intl.DateTimeFormat().resolvedOptions().timeZone;
if (
display_time_zone === undefined || // https://bugs.chromium.org/p/chromium/issues/detail?id=1487920
display_time_zone === "Etc/Unknown" // https://bugs.chromium.org/p/chromium/issues/detail?id=1473422
) {
display_time_zone = user_settings.timezone;
try {
new Intl.DateTimeFormat(undefined, {timeZone: display_time_zone});
} catch {
display_time_zone = "UTC";
}
}
const formatter_map = new Map<string, Intl.DateTimeFormat>();
export function clear_for_testing(): void {