Convert between seconds, minutes, hours, days, weeks, and years. Enter a time value and see the equivalent in all other common time units instantly.
Seconds
86,400
Minutes
1,440
Hours
24
Days
1
Weeks
0.1429
Years
0.002738
1
day
1 days (0.2738% of a year)
21,600
Breaths
411.4286
Songs (~3.5 min)
12
Movies (~2 hrs)
16
Sleep Cycles (90 min)
Time conversion is useful in project management, science, cooking, and everyday planning. While most people think in hours and days, scientists and engineers often work in seconds, and project managers frequently need to convert between weeks, days, and hours. This converter handles all common time units.
There are exactly 86,400 seconds in a day (24 hours × 60 minutes × 60 seconds). This is a commonly referenced number in computing and science.
There are approximately 52.1429 weeks in a year (365 days ÷ 7 days per week). A leap year has about 52.2857 weeks. For simplicity, most people round to 52 weeks.
Multiply the number of hours by 60. For example, 2.5 hours = 150 minutes. To convert back, divide minutes by 60. For mixed results, the whole number is hours and the remainder is minutes.
Time Zone Converter
Convert times between any two time zones instantly. Select your source and target time zones, enter the time, and see the converted result with day change indicators.
Age Calculator
Calculate your exact age in years, months, and days. Find total days lived, weeks, and your next birthday countdown from any date of birth.