Timestamp input
Unix timestamp to date
Date input is interpreted in your browser's local timezone. Fixed UTC offsets are display-only and do not apply daylight-saving rules.
Date and time conversion
Timestamp Converter
Convert Unix timestamps to readable UTC, browser-local and fixed-offset dates. Reverse-convert a local date, inspect live epoch time and compare common reference values.
Converted values
Timestamp conversion results
Current Unix timestamp
Timestamp conversion formulas
seconds = floor(milliseconds / 1000)Divide milliseconds by 1,000 and round down to get whole Unix seconds.
milliseconds = seconds * 1000Multiply Unix seconds by 1,000 to get milliseconds.
Unix epoch = 1970-01-01 00:00:00 UTCUnix time counts elapsed seconds from this instant; values before it are negative.
display time = UTC + offsetA timezone changes the displayed clock time, not the underlying timestamp.
Unix timestamp reference table
| Timestamp | UTC date and time | Meaning |
|---|---|---|
| 0 | 1970-01-01 00:00:00 | Unix epoch |
| 946684800 | 2000-01-01 00:00:00 | Start of year 2000 |
| 1609459200 | 2021-01-01 00:00:00 | Start of year 2021 |
| 1704067200 | 2024-01-01 00:00:00 | Start of year 2024 |
| 4102444800 | 2100-01-01 00:00:00 | Start of year 2100 |
Popular timestamp conversions
Timestamp converter FAQ
What is a Unix timestamp?
A Unix timestamp is the number of seconds elapsed since 1970-01-01 00:00:00 UTC, excluding leap seconds.
Why do some timestamps have 13 digits?
Modern systems often store Unix time in milliseconds. A current millisecond timestamp has 13 digits, while seconds usually have 10.
Does changing the timezone change the timestamp?
No. The timestamp identifies one instant. A timezone only changes how that instant is displayed.
How is the local date input interpreted?
The browser interprets it in your device's local timezone. Daylight-saving gaps or repeated times follow the browser's timezone rules.