Unix Timestamp Converter
Convert Unix timestamps in seconds or milliseconds to ISO 8601, UTC and local time, or turn a date string back into a timestamp.
Runs on your device
Result
Results appear here as you type.
What it does
Logs, databases and APIs store time as seconds since 1 January 1970 UTC. Paste a number or a date and get every common representation side by side. Values of 11 or more digits are treated as milliseconds.
How to use it
- Paste a timestamp or a date string.
- Read the converted values.
- Copy the format you need.
Example
1700000000 is 2023-11-14T22:13:20Z. Select Try an example above to see it.
When it helps
- Reading created_at columns.
- Converting JWT exp claims.
- Checking log timestamps across time zones.
Questions
How do you tell seconds from milliseconds?
Values with an absolute size of 100,000,000,000 or more are treated as milliseconds. That covers every date after 1973 in milliseconds and before year 5138 in seconds.
Which time zone is "local"?
The time zone set on your device.
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