Time Converter

Convert time between nanoseconds and years instantly. Useful for project scheduling, scientific calculations, programming (Unix timestamps), and everyday planning.

Common Time Conversions

FromTo
1 minute60 seconds
1 hour60 minutes = 3,600 seconds
1 day24 hours = 86,400 seconds
1 week7 days = 604,800 seconds
1 month (avg)30 days = 2,592,000 seconds
1 year365 days = 31,536,000 seconds
1 year8,760 hours
1 year525,600 minutes
1 leap year366 days = 31,622,400 seconds
1 decade10 years

Time Unit Definitions

Second (s)
The SI base unit of time, defined by the cesium-133 atom.
Minute (min)
60 seconds.
Hour (h)
3,600 seconds = 60 minutes.
Day (d)
86,400 seconds = 24 hours.
Week (wk)
7 days = 604,800 seconds.
Year (yr)
365 days (366 in a leap year) = 31,536,000 seconds.

Frequently Asked Questions

How many seconds are in a day?

One day contains exactly 86,400 seconds (24 hours × 60 minutes × 60 seconds).

How many hours are in a year?

A standard year has 8,760 hours (365 days × 24 hours). A leap year has 8,784 hours.

How many seconds are in a year?

A standard year has 31,536,000 seconds. A leap year has 31,622,400 seconds.