Timestamp Converter
Convert between Unix timestamps, ISO 8601, and human-readable dates. Live current time with relative deltas.
01Why this timestamp tool
One instant, every format.
Four reasons developers and SREs keep this tab open during incident review and API work.
- 01
Unix, ISO, and human-readable, side by side
Paste a Unix timestamp and read the ISO string, UTC, and your local time. Paste a date and read the Unix value back.
- 02
Updates instantly
Type in either side and the other panels follow. No conversion button, no waiting.
- 03
Local time, UTC, and ISO 8601
See the same instant in your local zone and in UTC. ISO 8601 string is laid out the way RFCs and APIs expect.
- 04
Relative delta from now
'12 minutes ago' or 'in 3 hours' next to the absolute timestamp. Useful for eyeballing log entries and scheduled jobs.
02How it works
Paste, read, copy.
- Input11731552000
Step 1Paste a timestamp
Drop in a Unix integer (seconds or milliseconds), an ISO string, or any date your browser understands.
- ViewUnixISOLocal
Step 2Read the conversions
All formats appear together — Unix seconds, milliseconds, ISO 8601, UTC string, and your local time.
- CopiedISO 86012024-11-13T21:20:00ZLocal · UTC · Unix ready
Step 3Copy what you need
One tap copies any single value to the clipboard. Drop it into your config, your test, or your bug ticket.
03Use cases
Where conversions help.
Logs, APIs, JWTs, cron jobs — anywhere time formats collide.
Read a Unix timestamp in a log
Logs use seconds-since-epoch for compactness. Paste the integer, see the human-readable date, confirm the incident timeline.
1731552000 → 2024-11-13 21:20 UTCSend a date to an API
Most JSON APIs want ISO 8601. Paste a human date, copy the ISO version, ship the request.
May 13, 2026 → 2026-05-13T00:00:00ZConvert between zones
Client said 9 AM in São Paulo, your team is in Helsinki. Translate to a single UTC instant so the calendar invite isn't off by three hours.
Local zone → UTCSchedule a cron job
Cron expressions don't think in zones. Convert your target wall-clock time to UTC, set the cron in UTC, sleep easy.
08:00 local → cron in UTCVerify a JWT exp claim
JWT exp values are Unix seconds. Paste the integer to see when the token actually expires.
JWT exp → ISO timeDebug a Postgres timestamp
Database column is a timestamptz; the app stores Unix seconds. Convert to confirm the round-trip preserved the right instant.
DB row → expected ISO
04Quick tips
Avoid the time-zone tax.
Four habits that sidestep the recurring date bugs.
- 01
Seconds vs milliseconds
Unix timestamps come in two flavors — seconds (10-digit) and milliseconds (13-digit). The tool detects which you pasted, but mismatches between systems are a constant bug source.
- 02
Default to UTC for storage
Store and transmit in UTC. Convert to local time only at the final display step. Anything else makes time-zone bugs inevitable.
- 03
ISO 8601 is the safe default
When in doubt, use the ISO string. It's unambiguous, parseable in every language, and visually carries the zone.
- 04
Watch out for daylight saving
Local times around DST shifts can be ambiguous (one slot happens twice, another never happens). UTC sidesteps the entire mess.
05Loved by
SRE, backend, and data.
Reading Unix timestamps in pager alerts. Drop into the tool, see the time in my zone and UTC, decide whether to escalate. Two seconds.
Building a date filter for an API. Paste the customer's local date, copy the ISO, paste into Postman. Repeatable, fast.
Cross-checking the data warehouse exports. The relative-time hint catches off-by-one-day bugs from a glance.
06Questions
Timestamps, plainly answered.
Questions before your first paste. Missing one? hello@wirelogs.com.
01Does the tool detect seconds vs milliseconds automatically?
Yes. A 10-digit value is treated as seconds, a 13-digit value as milliseconds. If you paste something unexpected, you'll see the conversion that matches the format.
02Which time zones are supported?
All of them. The conversion uses your browser's IANA database. Output panels show UTC and your local zone simultaneously.
03Does my input leave the browser?
No. Conversion is pure date arithmetic and runs entirely in your tab. Wirelogs never sees what you paste.
04Can I convert other date formats?
Yes — any string the browser's Date parser accepts works, including ISO 8601, RFC 2822, and plain language like 'May 13 2026 9:00 PST'.
05What about timezones in JWTs and APIs?
Most use UTC seconds since epoch. The relative-time hint and the absolute ISO render together so the meaning is obvious at a glance.
06Is it free?
Yes. No sign-up, no usage cap, no watermark.
Ready when you are
See the instant in every shape.
Paste a Unix integer or a date string above. The matching formats appear instantly.
- Unix · ISO · Localthree formats
- Localprivate
- $0now and always