Free Time Unit Converter – Seconds, Minutes, Hours & Days

There are 86,400 seconds in a day (24 hours × 60 minutes × 60 seconds). Enter a value in days and the converter shows the equivalent in seconds and every other unit at once.

Enter a value in the hours field and the days result updates instantly. There are 24 hours in a day, so 48 hours shows as 2 days. The converter handles it in both directions.

Kisi bhi unit ke box mein value type karo — jaise seconds, minutes, hours ya days — aur baaki units turant update ho jayengi. Sab kuch browser mein hota hai, kuch upload nahi hota.

The converter uses average lengths, treating a year as 365.25 days and a month as one-twelfth of that, to account for leap years on average. For exact calendar gaps between specific dates, use a date difference calculator instead.

Yes. After the page loads, the converter runs entirely in your browser using JavaScript, so it keeps working without an internet connection and never contacts a server.

Yes. Developers often need to express durations in milliseconds or seconds. The converter lets you translate between milliseconds, seconds, minutes, and hours quickly when setting timeouts or intervals.

Yes. Enter a value in weeks and the converter shows it in days, hours, and other units. One week equals 7 days, so 3 weeks shows as 21 days.

Yes. Everything is processed in your browser. No value you enter is uploaded, logged, or shared, so your data stays entirely on your own device.