Time Converter
Time measures the duration between events. The SI base unit is the second. Larger units build up through minutes, hours, and days. Month and year values here use the average Gregorian calendar length, so they are approximate for any specific month or year.
About time conversion
Time conversion is commonly needed when scheduling, timers, project planning, and physics. Month and year use average calendar lengths, so they are approximate for any specific date range.
Popular conversions
All time units
| Unit | Symbol | System |
|---|---|---|
| Second | s | SI |
| Millisecond | ms | SI |
| Microsecond | µs | SI |
| Minute | min | Other |
| Hour | h | Other |
| Day | d | Other |
| Week | wk | Other |
| Month | mo | Other |
| Year | yr | Other |
Frequently asked questions
What is the base unit for time?
Time conversions on this site are calculated against the second (s).
Which time units can I convert?
You can convert between 9 units, including second, millisecond, microsecond, minute, and more.
Where is time conversion useful?
It is commonly needed when scheduling, timers, project planning, and physics.
Does this converter mix measurement systems?
The converter supports SI, Other units and keeps their exact definitions separate so results stay accurate.