Practical tools for measured work
Current time
Compare live device time across named city time zones and local dates.
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This clock reads your device’s current time and formats it in the selected zone. It is not synchronized to an independent time server. Check your device clock if the displayed time is incorrect.
Compare your device clock with this server
Take three fresh samples and use the shortest round trip to estimate server minus device time. Positive means this server is ahead of your device. This does not change your clock or the display above.
This is an HTTPS server-clock comparison, not an atomic-time service or NTP synchronization. Network asymmetry and server processing affect the estimate; round-trip delay is not a guaranteed error bound. Results are a snapshot. Recheck after sleep, network changes or a device-clock adjustment.
City time comparison
| Time zone | Local date and time |
|---|---|
| UTC | … |
| America/New_York | … |
| America/Chicago | … |
| America/Denver | … |
| America/Los_Angeles | … |
| America/Sao_Paulo | … |
| Europe/London | … |
| Europe/Berlin | … |
| Europe/Paris | … |
| Asia/Dubai | … |
| Asia/Kolkata | … |
| Asia/Kathmandu | … |
| Asia/Tokyo | … |
| Asia/Shanghai | … |
| Australia/Sydney | … |
| Australia/Lord_Howe | … |
| Pacific/Auckland | … |
Daylight-saving adjustments use the browser’s time-zone database. Cities can change date at different moments; the full local date is shown for every zone.
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Calculate calendar age on an explicit date in years, months and days.