Time Unit Converter

This time unit converter translates between seconds, minutes, hours, days, weeks, months, and years.

Formula notes

1 min = 60 s; 1 h = 60 min; 1 day = 24 h; 1 week = 7 days; 1 year ≈ 365.25 days (leap averaged).

Worked examples

1. Example: 1 week = 168 h = 10080 min = 604800 s.
2. A duration of 90 minutes equals 1.5 hours or 5,400 seconds.

How to use it

1. Enter the duration and its unit.
2. Read all other unit equivalents.
3. Use 365.25-day years for long spans.

Frequently asked questions

Limits and interpretation

• Calendar months and years do not have fixed lengths, so their conversion to days depends on the convention used.
• This tool converts durations; it does not handle time zones, daylight-saving transitions, or clock timestamps.

References

• NIST: SI Units