Time Converter
Convert time durations between seconds, minutes, hours, days, weeks, months, and years.
Formula: 1 h = 60 min
All Equivalent Units Table
How It Works & Underlying Concept
Time measurement links human activities, computational execution cycles, and astronomical orbital periods. Converting between seconds, hours, and calendar increments is essential for engineering, scheduling, and billing calculations.
1 Hour = 60 Minutes = 3,600 Seconds = 3,600,000 MillisecondsKey Capabilities
- Convert across 8 time increments from milliseconds to calendar years
- Instant simultaneous multi-unit breakdown
- Scientific decimal precision for fractional time intervals
Work Hours to Weeks
A contractor tracks 160 billable project hours and wants to know the equivalent full 40-hour work weeks.
- Month calculations use the astronomical average month of 30.4375 days; year calculations use standard 365.25 days.
Frequently Asked Questions
How many seconds are in one day?▾
How many hours are in a non-leap year?▾
Related Converters
View all ConvertersDate Difference Calculator
Calculate the exact number of calendar days, business days, and weekends between two dates.
Speed Converter
Convert speed and velocity between km/h, mph, m/s, knots, and feet per second.
Online Stopwatch
Millisecond-precision online stopwatch with start, pause, reset, and lap split tracking.
Countdown Timer
Online countdown timer with audible completion alert, customizable hours, minutes, and seconds.