Unix Timestamp Converter
Convert Unix time to dates and back · free, no signup
Timestamp to date
Date to timestamp
Free Unix Timestamp / Epoch Converter
Unix time counts the seconds since 1 January 1970 (UTC). Developers see it in logs, APIs and databases, but it is unreadable at a glance. This converter turns a timestamp into a date in both UTC and your local time zone, and turns any date into a timestamp.
It detects seconds versus milliseconds automatically and shows the current timestamp live, so you can copy it into code or test data.
Key features
Both directions
Timestamp to date and date to timestamp.
Seconds or milliseconds
Detected automatically.
UTC and local
See both at the same time.
Live clock
Copy the current epoch with one click.
How to use it
- Paste a timestamp or pick a date.
- Read the converted value in UTC and local time.
- Copy the result or the live timestamp.
Worked example
Example
1700000000 → Tue, 14 Nov 2023 22:13:20 UTC 1700000000000 (milliseconds) → the same moment 2026-01-01 00:00 UTC → 1767225600
Who uses this tool
Developers and DevOps
Read timestamps in logs, APIs and databases.
Data analysts
Convert epoch columns to dates.
Support engineers
Match events across systems and time zones.
Tips for the best results
- 10 digits usually means seconds; 13 digits usually means milliseconds.
- Always store times in UTC and convert only for display.
- Include the time zone when sharing a timestamp.
- Watch for the year 2038 limit on 32-bit systems.
Common mistakes to avoid
- Mixing up seconds and milliseconds, which puts dates in 1970 or year 50000.
- Forgetting daylight saving changes in local time.
- Comparing timestamps from different time zones without converting.
Why use AZRS QuickFix?
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Frequently asked questions
What is Unix time?
The number of seconds elapsed since 00:00:00 UTC on 1 January 1970.
How do I tell seconds from milliseconds?
A 10-digit value is seconds, a 13-digit value is milliseconds.
What is the Year 2038 problem?
Systems storing seconds in a signed 32-bit integer overflow on 19 January 2038. Modern 64-bit systems are unaffected.
Does Unix time include time zones?
No. It is always UTC. Time zones only apply when you display it.
What is the Unix epoch?
The starting point of Unix time: 1 January 1970 00:00:00 UTC.
What is the Year 2038 problem?
Systems that store seconds in a signed 32-bit number overflow on 19 January 2038.