Current Unix time
Why this exists
Most epoch tools make you tell them whether your number is seconds or milliseconds, then quietly mangle the answer when you get it wrong. This one reads the digit count and picks the unit that lands in a sane range, handles microseconds and nanoseconds too, and shows UTC and your local time side by side so you never have to do the offset in your head. Everything runs in your browser.
Frequently asked questions
- What is a Unix timestamp?
- It is the number of seconds that have passed since midnight UTC on 1 January 1970, the Unix epoch. It is the most common way computers store a moment in time because it is a single integer with no timezone attached. A timestamp of 0 is the epoch itself; negative values are moments before 1970.
- How does it know if my number is seconds or milliseconds?
- By how many digits it has. A 10-digit number lands in the present day when read as seconds, so it is treated as seconds. A 13-digit number is milliseconds, 16 is microseconds, and 19 is nanoseconds. You can override the guess with the unit buttons if your value is unusual.
- Why is the local time different from the UTC time?
- A Unix timestamp has no timezone; it is a fixed instant. UTC and your local time are two labels for that same instant. The converter shows both so you can read the moment in the timezone you think in, while UTC stays the unambiguous reference everyone agrees on.
- Can it handle dates before 1970?
- Yes. Paste a negative timestamp and it resolves to a date before the epoch. The date-to-timestamp direction handles them too, so a 1960s date produces the correct negative value.
- What is the year 2038 problem?
- Systems that store Unix time in a signed 32-bit integer run out of room on 19 January 2038, when the second count exceeds 2,147,483,647 and wraps to a negative number. Anything using a 64-bit integer, which is now standard, is fine for roughly 292 billion years.
- Does it track me or use cookies?
- No. No ads, no analytics, no third-party scripts. Every conversion happens in your browser and nothing is sent anywhere.