Evidence-based guide
Time Scale Conversions and Intervals
Time conversion maps intervals from short increments (seconds, minutes) to larger cycles (days, weeks, months, years) to assist in scheduling, physics, and historical analysis.
Time Converter
Time Unit Converter
Convert between different time scales and intervals
1 h equals
60 min
| Unit | Value |
|---|---|
| Seconds (s) | 3,600 s |
| Minutes (min) | 60 min |
| Hours (h) | 1 h |
| Days (d) | 0.04166667 d |
| Weeks (wk) | 0.00595238 wk |
| Months (mo) | 0.00138889 mo |
| Years (yr) | 0.00011416 yr |
Relative Duration Scale (Compared to 1 Day)
1 s1 seconds
1 min60 seconds
1 h3,600 seconds
1 d86,400 seconds
1 wk604,800 seconds
Convert between seconds, minutes, hours, days, weeks, and years.
Formula and calculation methods
Target Time = Source Time × (Source Base Ratio ÷ Target Base Ratio)
Chronological Conversions
Converting base-60 increments (seconds, minutes, hours) to calendar cycles (days, weeks, years).
Calendar Standardizations
Standardizing months (approx. 30.42 days) and years (365 days) for long-term calculations.
How to interpret your result
Conversions show the elapsed duration expressed in alternative intervals simultaneously.
Limitations and safety
Calculations use standard averages and do not account for individual leap seconds, timezone offsets, or specific calendar month length fluctuations (like February's 28/29 days).
Frequently asked questions
How many seconds are in a day?
There are exactly 86,400 seconds in a standard 24-hour day (60 seconds × 60 minutes × 24 hours).
How many weeks are in a year?
A standard year has 365 days, which is exactly 52 weeks and 1 day (or 52.17 weeks).
Why are calendar months variable?
Gregorian months have between 28 and 31 days. This converter uses the standard calendar average of 30.42 days per month.