Unix Timestamp Converter

Highlights

• Convert epoch seconds or epoch milliseconds to a readable date instantly.
• Check the same timestamp in Local, UTC, and any IANA time zone.
• Convert a human date/time back into Unix seconds and Unix milliseconds.
• Copy exact outputs or share a reproducible conversion URL.

How to use

1. Paste an epoch timestamp or type a date/time value.
2. Choose whether datetime-local should be read as Local, UTC, or an IANA time zone.
3. Copy the readable date, ISO 8601 value, Unix seconds, or Unix milliseconds you need.

Common use cases

• Turn Unix timestamps from logs, APIs, or databases into human-readable dates.
• Check whether an epoch value is in seconds or milliseconds before debugging downstream systems.
• Share the exact conversion context with teammates when you need everyone to inspect the same timestamp.

Need city-to-city scheduling instead of timestamp debugging? Use the Time zone converter or Time Zone Meeting Planner.

Convert epoch seconds, milliseconds, and date-time inputs safely

This page converts Unix seconds, Unix milliseconds, and datetime-local inputs into local, UTC, or IANA time-zone views. It is useful for API debugging, log review, and copy/paste checks because you can see the same value in multiple formats immediately. Always confirm whether your source system expects seconds or milliseconds before copying the result downstream. Open Time Format Converter for notation-only changes, Time Zone Converter for explicit city conversion, and World Clock Board when you want a persistent multi-zone view instead of one timestamp.

Good fits

• Debug API payloads and log timestamps.
• Interpret datetime-local input in local time, UTC, or a named IANA zone.
• Copy ISO, Unix seconds, or Unix milliseconds from one page.

Limits to remember

• datetime-local has no timezone until you choose one.
• Millisecond and second inputs differ by three digits, which changes the date completely.
• Share URLs keep the current input and display settings only.

FAQ

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