Timestamp Converter
Free unix timestamp converter. Convert epoch seconds or milliseconds to readable UTC and IST dates — or paste an ISO date to get its unix timestamp.
About the Timestamp Converter
A timestamp converter that translates between unix epochs (seconds or milliseconds) and human-readable UTC/IST dates instantly.
Computers timestamp everything as seconds (or milliseconds) since 1 January 1970 UTC — the unix epoch. It's a wonderfully unambiguous format for machines and a completely opaque one for humans: nobody reads 1783247400 and thinks "early July 2026". Whenever you're staring at a log line, an API response, a database row or a JWT claim, this converter translates in both directions instantly.
Paste a number and it becomes a date, shown simultaneously as an ISO 8601 UTC string, Indian Standard Time in full, the equivalent in both seconds and milliseconds, and a relative description like "3 days ago". The seconds-vs-milliseconds trap is handled automatically by length — a 10-digit number is seconds, 13 digits is milliseconds — which matters because confusing them puts your date in 1970 or in the year 57,000. Paste an ISO date string instead and you get its timestamps; type nothing (or "now") for the current moment.
The dual UTC/IST display earns its place in Indian engineering work: servers, databases and APIs conventionally run on UTC while your users, logs dashboards and stand-up conversations run on IST, five and a half hours ahead. That half-hour offset (UTC+5:30) breaks the mental arithmetic that works for whole-hour zones, so having both printed side by side prevents the classic off-by-a-timezone bug in cron schedules, report boundaries and expiry checks.
How to use the Timestamp Converter
- Type or paste a Unix timestamp (seconds or milliseconds) or an ISO date string.
- Alternatively, type 'now' or leave the field blank for the current time.
- The tool automatically determines the format and displays equivalent times in UTC, IST, and relative terms.
Worked example
Enter '1783247400' to instantly see it corresponds to '2026-07-05T10:30:00Z'. Type 'now' to get the current timestamp.
Frequently asked questions
- Seconds or milliseconds — how do I tell?
- Length: current dates are 10 digits in seconds and 13 in milliseconds. Unix/database timestamps are usually seconds; JavaScript's Date.now() gives milliseconds. The converter detects this automatically.
- What is the unix epoch?
- Midnight UTC on 1 January 1970 — the zero point from which unix time counts seconds. It's timezone-independent: the same timestamp represents the same instant everywhere on Earth.
- Why does IST make timestamp math tricky?
- IST is UTC+5:30 — the half-hour offset defeats quick mental conversion that works for whole-hour zones, which is why UTC-configured servers and IST-thinking humans so often disagree by exactly one boundary.
- How do I get the current timestamp?
- Simply type 'now' or leave the input blank. The converter will display the current time in Unix seconds, milliseconds, and readable date formats.
- Can I convert dates to timestamps?
- Yes, you can paste an ISO date string (like '2026-07-05T10:30:00Z') into the input field, and the tool will instantly convert it to Unix seconds and milliseconds.
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