Timestamp Converter
Convert Unix timestamps to readable dates and convert dates back to Unix timestamps instantly in your browser.
Converted Output
Unix Timestamp
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Milliseconds
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ISO 8601
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UTC Time
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Local Time
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Relative Time
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Status
—
Input Type
0
Timestamp Length
Local
Timezone
—
Output Format
Privacy
Everything is processed locally in your browser. No data leaves your browser.
How To Use
Enter a Unix timestamp
paste or type it into the left input, or click Current Timestamp.
Or pick a date & time
use the date and time pickers on the right, and choose a timezone.
Click Convert
use → to convert to a date, or ← to convert to a timestamp.
Review the output cards
for milliseconds, ISO 8601, UTC, local and relative time.
Copy what you need
with a single click on any result.
About Timestamp Converter
Convert Unix time or epoch timestamps into human-readable dates, or convert a readable date back into a Unix timestamp, directly in your browser. The DevToolVerse Timestamp Converter helps you move between Unix timestamps and readable dates in either direction. A Unix timestamp counts the seconds (or milliseconds) since January 1, 1970 UTC, giving developers a compact, timezone-independent way to represent a moment in time across logs, databases and APIs.
Developers rely on Unix timestamps because they are easy to store, compare and sort, and they avoid the ambiguity of timezone-dependent date strings. This tool makes it simple to move between that raw numeric format and a human-readable date whenever you need to inspect or debug a value.
All conversion happens locally in your browser, meaning your timestamps are never uploaded to a server. This keeps your data private while providing fast, accurate results.
Common Use Cases
- Convert a Unix timestamp from an API response into a human-readable date.
- Inspect timestamps found in application logs or debugging output.
- Convert a database timestamp column value into a readable date and time.
- Convert a JavaScript Date.now() value into a human-readable date.
- Convert a readable date back into a Unix timestamp for an API, database, or developer tool.
Features
Unix Seconds & Milliseconds
works with both 10-digit second and 13-digit millisecond timestamps.
Date ↔ Timestamp
convert in either direction, from timestamp to date or date to timestamp.
UTC & Local Time
view results in UTC or your local timezone.
ISO 8601 Output
get a standards-compliant ISO 8601 formatted date string.
Relative Time
see how far a timestamp is from now, in plain language.
Instant Conversion
results update immediately, with no noticeable delay.
Copy Results
copy any output value to your clipboard with one click.
Privacy First
your data is never uploaded or stored.
Quick Reference
Seconds vs Milliseconds
Common Examples
Worked Example: Seconds vs Milliseconds
These represent the same date and time, but the millisecond timestamp preserves three additional digits of sub-second precision.
Limitations & Important Notes
- This tool accepts exactly 10-digit Unix timestamps for seconds or 13-digit timestamps for milliseconds.
- Older Unix timestamps representing dates before the 10-digit range may contain fewer digits and are not accepted directly by the current input parser.
- Decimal timestamps, comma-formatted values, spaces inside the number, and other non-digit characters are not accepted. Enter the raw integer value.
- Negative timestamps can be generated from dates before 1970 using the date converter, but negative values cannot currently be pasted back into the Unix Timestamp input.
- Timezone conversion is limited to UTC and your device's local timezone. The tool does not provide an arbitrary timezone selector such as America/New_York or Asia/Kolkata.
FAQ
A Unix timestamp is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC (the Unix epoch). It is a compact, timezone-independent way to represent a specific point in time.
Unix timestamps are traditionally measured in seconds, but many JavaScript APIs and systems use milliseconds instead. This tool accepts both, based on the number of digits you enter.
A 13-digit value is a millisecond timestamp rather than a second timestamp. JavaScript's Date.now() and many web APIs return millisecond timestamps by default, which is why 13-digit values are common.
ISO 8601 is an international standard for representing dates and times, formatted like 2026-08-04T12:30:00.000Z. It is unambiguous, sortable and widely supported across programming languages.
No. All conversion happens locally in your browser. Your timestamps and dates are never sent to a server.
Yes. Unix timestamps can represent any date, past or future, as long as it fits within the supported range of your browser's Date object.
The Unix Timestamp field only accepts an integer that is exactly 10 digits (seconds) or 13 digits (milliseconds). Decimal points, comma-formatted numbers, spaces, and negative values are not accepted, so a pasted value containing any of those will be rejected until you clean it up to a plain integer.
Yes, for date-to-timestamp conversion: picking a date before 1970 and converting it produces a negative Unix timestamp. That negative value cannot currently be pasted back into the Unix Timestamp field for the reverse conversion.
The tool currently supports UTC and your device's local timezone. It does not provide a selector for arbitrary named timezones such as America/New_York or Asia/Kolkata.