Time zone converter
Convert dates and times in messages into your timezone. Free, private, and available offline after the first complete load.
Message
Results update as you type.
Converted time
PreparingPreparing converter…
Date, time and timezone appear here.
How to convert dates and times
Paste a message with a date, time and timezone, then choose a city or timezone under Convert to. Results update as you type. Copy a converted time to use it in your reply.
Try “April 9, 2026 3pm in Tokyo” and convert to UTC to get 6:00 am on April 9. You can also convert time ranges and Unix timestamps.
If the message has no timezone, open Message interpretation and set Source timezone. Regional timezones account for daylight saving time; fixed UTC offsets stay fixed. Choose an interpretation for ambiguous abbreviations, and check the displayed date order for numeric dates. Copy range includes both endpoints of an unambiguous interval. Display preferences controls the clock format without changing what the message means.
Conversions run on your device and your message is not sent to a server. Once offline readiness is confirmed, you can reopen the app and convert new messages without an internet connection.