Timestamp to date converter
You have one specific number — from a log line, an API response, a database row — and you need to know what actual date and time it represents. Paste it in and this page leads straight with the readable date, in your local time and UTC side by side, before anything else.
- Nothing you type leaves this page
- Works offline once loaded
- Free forever, no signup
Preparing Timestamp to Date Converter for you…
Loading the tool into your browser. Nothing is uploaded — the work happens on your device.
Assumed {{ result.unitDetected === 's' ? 'seconds' : (result.unitDetected === 'ms' ? 'milliseconds' : 'microseconds') }} ({{ String(raw).replace(/[^0-9]/g,'').length }} digits) — {{ result.relative }}.
- ISO 8601{{ result.iso }}
- UTC{{ result.utc }}
- Local (your device){{ result.local }}
{{ result.error }}
- Seconds {{ toEpoch.s }}
- Milliseconds {{ toEpoch.ms }}
How to use this tool
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Paste the timestamp
From a log file, a database column, an API response — anywhere you found a bare number.
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Read the date directly
Your local time and UTC are both shown immediately, with the assumed unit (seconds or milliseconds) stated.
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Switch timezone if needed
Pick any other IANA zone from the searchable list, IST and UTC pinned at the top.
Questions people ask
How do I convert a timestamp to a date?
Paste the number here — the readable date in your local time zone and in UTC appears immediately, with a clear note on whether the timestamp was interpreted as seconds or milliseconds.
My timestamp has 13 digits — is that seconds or milliseconds?
13 digits is milliseconds. A 10-digit timestamp is seconds — the same value multiplied by 1,000. This tool detects the digit count automatically and converts accordingly, showing which assumption it made.
Why does the date look 5 hours 30 minutes off from what I expected?
That is almost always a UTC vs IST mismatch — Indian Standard Time is UTC+5:30, so a timestamp read in UTC will show a time 5 hours 30 minutes earlier than the same instant read in IST. Double-check which timezone your system actually recorded the timestamp in.
Can I convert a whole column of timestamps at once?
Not on this page — it is built for checking one value at a time. For a spreadsheet full of timestamps, most spreadsheet tools can do the same seconds→date conversion with a formula once you know whether the values are seconds or milliseconds.
Is the timestamp I paste sent anywhere?
No — conversion happens entirely in your browser's JavaScript, with no request to any server, so it works even with your connection switched off after the page has loaded.
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