Timestamp Converter
Convert Unix timestamps to readable local, UTC, and ISO dates.
Input is processed in your browser and is not uploaded.
Output
Results appear here.This timestamp converter helps inspect log entries, API payloads, database values, and event times. It detects seconds or milliseconds and shows multiple date formats. Lightweight, mobile-friendly, and built for quick repeat use.
Translate timestamps into human review context
Unix timestamps are compact for machines and inconvenient for humans. This converter helps you inspect API payloads, database exports, logs, and event streams by showing local time, UTC, and ISO output side by side. It also helps catch the classic seconds-versus-milliseconds mistake.
Log debugging
Convert event times from logs into local and UTC values before comparing incidents across systems.
API payload review
Check expiry, created_at, updated_at, and scheduled_at fields copied from JSON responses.
Timezone sanity checks
Compare local display time with UTC when coordinating releases, alerts, or support tickets.
Check time values consistently
- 1Paste the timestamp exactly as it appears in the source system.
- 2Confirm whether the value is in seconds or milliseconds.
- 3Compare UTC and local time before drawing conclusions about order or delay.
- 4Use ISO output when pasting dates back into docs, tickets, or JSON examples.
Seconds vs milliseconds
1700000000UTC: 2023-11-14T22:13:20.000Z
Milliseconds form: 1700000000000A missing three zeros can shift a timestamp from milliseconds to seconds handling.
Time pitfalls
- Unix timestamps do not include a timezone; interpretation happens when displayed.
- Some APIs use milliseconds while others use seconds for the same field name.
- Daylight saving changes can make local time comparisons misleading.
FAQ
Does it support milliseconds?+
Yes. The converter detects long timestamps as milliseconds and shorter Unix timestamps as seconds.
What time zone is shown?+
The tool shows your local time, UTC time, and ISO format.
Can I get the current timestamp?+
Yes. Use the Now action to insert the current Unix timestamp.