Time tools
Useful time converters and reminders.
12 / 24-hour converter
Enter a 24-hour time or a 12-hour time with AM/PM to compare both formats and four-digit notation. Browse common times by hour below.
For 24-hour input, use 17:30. For 12-hour input, use 5:30 and choose AM or PM. Supports 00:00–23:59; 24:00 and seconds are not accepted.
24-hour time
17:30
12-hour time
5:30 PM
Four-digit time (military format)
1730
This changes how the same clock time is written. It does not convert time zones or specify a date.
Open the full time zone converterTime zone converter
Choose a date and time in the source time zone to convert to the destination. Results include date changes and daylight saving rules for the selected date.
Use a 24-hour clock. Supports years 1970–2100, to the minute. The date and time belong to the selected source zone.
Source time zone · Beijing
Friday, October 16, 2026 at 12:39
Asia/Shanghai · UTC+08:00
Destination time zone · New York
Friday, October 16, 2026 at 00:39
America/New_York · UTC−04:00
Destination is on the same calendar date
Destination offset minus source offset: -720 minutes
Equivalent UTC instant · 2026-10-16T04:39:00.000Z
World time zones
Your local time zone: UTC
Desktop reminder
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