Show Me the Time
Data and Accuracy
Last updated November 9, 2026
Show Me the Time uses IANA time-zone identifiers, such as America/Toronto and Asia/Kolkata, through the browser’s Intl.DateTimeFormat engine. That engine applies the time-zone data distributed with the user’s browser or operating system.
How clocks are calculated
The browser provides the current device time. We format the same instant in the selected IANA zone and calculate its UTC offset for that date. No device-location permission is required.
Daylight-saving changes
The tools compare date-aware offsets and search forward for the next transition. This handles most seasonal changes, including regions that change on different dates. Political decisions can be announced with little notice, so recently changed rules may depend on a browser or operating-system update.
Meeting recommendations
The planner treats 9:00 AM to 5:00 PM as typical working hours, 7:00–9:00 AM and 5:00–9:00 PM as early or evening time, and the remaining hours as normal sleep time. The fairness score is a planning aid, not a statement about any person’s availability or culture.
Limitations
City labels represent an IANA zone and not necessarily every local exception. Historical civil-time research, disputed territories, maritime time and official deadline interpretation may require a specialist source.
Review and corrections
This method was reviewed on November 9, 2026. Report a suspected issue through the contact form with the page URL, city and date.