Time Unit Converter

Convert any time value between seconds, minutes, hours, days, weeks, months, and years. Instant bidirectional conversion.

Milliseconds:

Seconds:

Minutes:

Hours:

Days:

Weeks:

Months:

Years:

Time Unit Converter Uses

How many seconds in a day? How many hours in a year? Instant answers.

Convert between hours and days for project time estimates.

Fun facts like how many seconds old you are!

Milliseconds, seconds, minutes, hours, days, weeks, months (30.44 days), and years (365.25 days).

One month is defined as 30.44 days (365.25 / 12), which is the average month length.

Yes, the converter handles very large numbers like millions of seconds or thousands of days.