Convert hours, minutes, seconds, days, weeks, months and years as you type. Turn hours and minutes into decimal hours, and see the same time in every unit.
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Convert Time
From
To
1 hr = 60 min
1 hr in other units
Millisecond3,600,000 ms
Second3,600 sec
Minute60 min
Hour1 hr
Day0.041667 d
Week0.005952 wk
Month0.001369 mo
Year0.000114 yr
Decade0.000011 dec
Century0.000001 cent
Hours and minutes1 hr
Minutes and seconds60 min
You can type hours and minutes as 1 hr 30 min, 1h 30m or 1:30, minutes and seconds as 2 min 15 sec, and days and hours as 2 d 6 hr. Choose "Hours and minutes" in a list to see an answer that way.
Common Time Conversions
Time Conversion Formulas
hours =minutes60
minutes = hours × 60
seconds = minutes × 60
hours = days × 24
days = weeks × 7
days = years × 365.2425
decimal hours = hours + minutes ÷ 60
A minute is 60 seconds, an hour 60 minutes, a day 24 hours and a week 7 days. Months and years are averages (see the table).
Minutes to Decimal Hours
For timesheets and pay. Click a row to convert it.
Minutes
Decimal hours
Hours:minutes
0.083333 hr
0:05
0.1 hr
0:06
0.166667 hr
0:10
0.2 hr
0:12
0.25 hr
0:15
0.333333 hr
0:20
0.416667 hr
0:25
0.5 hr
0:30
0.583333 hr
0:35
0.666667 hr
0:40
0.75 hr
0:45
0.833333 hr
0:50
0.916667 hr
0:55
1 hr
1:00
Decimal hours = minutes ÷ 60, so 1 hour 30 minutes is 1.5 hours and 1 hour 20 minutes is 1.333333 hours.
Popular Conversion Charts
The values people look up most. Pick a conversion, then click a row to convert it.
Hours
Minutes
15 min
30 min
60 min
90 min
120 min
150 min
180 min
240 min
300 min
360 min
480 min
600 min
720 min
1,440 min
Minutes
Hours
0.083333 hr
0.166667 hr
0.25 hr
0.333333 hr
0.5 hr
0.75 hr
1 hr
1.25 hr
1.5 hr
2 hr
3 hr
4 hr
8 hr
12 hr
Minutes
Seconds
30 sec
60 sec
120 sec
180 sec
300 sec
600 sec
900 sec
1,200 sec
1,800 sec
2,700 sec
3,600 sec
5,400 sec
7,200 sec
Seconds
Minutes
0.166667 min
0.5 min
0.75 min
1 min
1.5 min
2 min
3 min
5 min
10 min
15 min
30 min
60 min
Days
Hours
12 hr
24 hr
48 hr
72 hr
96 hr
120 hr
144 hr
168 hr
240 hr
336 hr
720 hr
8,760 hr
Hours
Days
0.041667 d
0.25 d
0.5 d
1 d
1.5 d
2 d
3 d
4 d
5 d
7 d
30 d
365 d
Weeks
Days
7 d
14 d
21 d
28 d
35 d
42 d
56 d
84 d
182 d
364 d
Days
Weeks
0.142857 wk
0.428571 wk
1 wk
1.428571 wk
2 wk
3 wk
4 wk
4.285714 wk
8.571429 wk
12.857143 wk
25.714286 wk
52.142857 wk
Weeks
Hours
84 hr
168 hr
336 hr
504 hr
672 hr
1,008 hr
1,344 hr
2,016 hr
4,368 hr
8,736 hr
Hours
Weeks
0.142857 wk
0.285714 wk
0.5 wk
0.714286 wk
1 wk
2 wk
3 wk
4 wk
5.952381 wk
11.904762 wk
Years
Days
91.310625 d
182.62125 d
365.2425 d
730.485 d
1,095.7275 d
1,460.97 d
1,826.2125 d
3,652.425 d
7,304.85 d
18,262.125 d
36,524.25 d
Days
Years
0.082137 yr
0.246412 yr
0.492823 yr
0.999336 yr
1.002074 yr
1.368954 yr
1.998672 yr
2.737907 yr
9.993361 yr
27.37907 yr
Months
Days
30.436875 d
60.87375 d
91.310625 d
121.7475 d
182.62125 d
273.931875 d
365.2425 d
547.86375 d
730.485 d
Days
Months
0.919937 mo
0.985647 mo
1.018501 mo
1.971293 mo
2.95694 mo
3.942586 mo
5.913879 mo
8.870819 mo
11.992033 mo
23.984065 mo
Days
Minutes
720 min
1,440 min
2,880 min
4,320 min
7,200 min
10,080 min
14,400 min
20,160 min
43,200 min
Minutes
Days
0.041667 d
0.083333 d
0.5 d
1 d
2 d
3 d
7 d
30 d
365 d
1 hour = 60 minutes. Every chart is worked out with the same maths as the converter.
How Many in a …?
The answers to the most asked questions, such as how many seconds are in a day.
One
Equals
1 minute
60 sec = 60,000 ms
1 hour
60 min = 3,600 sec
1 day
24 hr = 1,440 min = 86,400 sec
1 week
7 d = 168 hr = 10,080 min
1 month (average)
30.436875 d = 730.485 hr
1 year (average)
365.2425 d = 8,765.82 hr = 52.1775 wk
1 decade
10 yr = 3,652.425 d
1 century
100 yr = 36,524.25 d
A normal year has 365 days and a leap year 366. The converter uses the average year of 365.2425 days, so 1 year shows as 365.2425 days.
Time Units at a Glance
Unit
Symbol
Equals
Microsecond
µs
0.000001 s
Millisecond
ms
0.001 s
Second
sec
1 s
Minute
min
60 s
Hour
hr
3,600 s
Day
d
86,400 s
Week
wk
604,800 s
Month (average)
mo
2,629,746 s
Year (average)
yr
31,556,952 s
Decade
dec
315,569,520 s
Century
cent
3,155,695,200 s
About the Time Converter
Type an amount of time in either box, choose the units, and the other box updates at once. It covers 11 units, from microseconds to centuries, and it understands hours and minutes (1 hr 30 min). Your numbers never leave your browser.
Use this free time converter to change an amount of time between microseconds, milliseconds, seconds, minutes, hours, days, weeks, months, years, decades and centuries. Type a number in either box and the other one follows as you type, with the same time in the main units shown underneath. You can type hours and minutes (1 hr 30 min or 1:30), minutes and seconds, or days and hours, and get an answer such as 1 hr 20 min. Pick how many decimals to round to, swap the two units with one click, and copy a link to your conversion. Charts list the most searched values for hours to minutes, minutes to hours, minutes to seconds, days to hours and weeks to days, plus a table of minutes as decimal hours for timesheets and the answers to how many seconds are in a day. It is free and instant, and your numbers stay in your browser.
How to convert hours to minutes
Multiply the hours by 60, because there are 60 minutes in an hour.
minutes = hours × 60
For 2.5 hours: 2.5 × 60 = 150 minutes. For 8 hours it is 480 minutes, and for a whole day (24 hours) it is 1,440 minutes.
How to convert minutes to hours
Divide the minutes by 60: hours = minutes ÷ 60. For 90 minutes: 90 ÷ 60 = 1.5 hours. For 45 minutes it is 0.75 hours, and for 20 minutes 0.333333 hours.
Minutes to decimal hours (timesheets and pay)
Timesheets and pay often need hours as a decimal: divide the minutes by 60 and add them to the whole hours. So 1 hour 30 minutes is 1.5 hours, 1 hour 20 minutes is 1.333333 hours and 2 hours 45 minutes is 2.75 hours. The "Minutes to Decimal Hours" table above lists the common minutes. To add or subtract lengths of time, use the Time Calculator.
Hours and minutes
You can type a time as 1 hr 30 min, 1h 30m or 1:30, and choose "Hours and minutes" in either list to see an answer that way: 1.5 hours shows as 1 hr 30 min. The same works for minutes and seconds (2 min 15 sec) and for days and hours (2 d 6 hr).
Seconds, minutes and hours
There are 60 seconds in a minute, 3,600 seconds in an hour and 86,400 seconds in a day. A second is 1,000 milliseconds, and a millisecond is 1,000 microseconds.
Days, weeks and years
A week is 7 days, which is 168 hours or 10,080 minutes. A normal year has 365 days and a leap year has 366. The converter uses the average Gregorian year of 365.2425 days, which is 8,765.82 hours or 52.1775 weeks.
Why months and years are not fixed lengths
Real months are 28 to 31 days long, so the converter uses an average month: a twelfth of the average year, which is 30.436875 days or 730.485 hours. A decade is 10 years (3,652.425 days) and a century is 100 years (36,524.25 days).
Time zones and dates
This converter changes the length of a time, not a clock time. To change the time on a clock between places, such as EST to PST, use the Time Zone Converter. To count the days between two dates, use the Date Calculator.
60 minutes, which is 3,600 seconds. A day has 24 hours, which is 1,440 minutes.
How many seconds are in a minute and in an hour?
There are 60 seconds in a minute and 3,600 seconds in an hour (60 × 60).
How many hours are in a day?
24 hours. A day is also 1,440 minutes or 86,400 seconds.
How many hours are in a week?
168 hours (7 days × 24 hours). A week is also 10,080 minutes.
How many days are in a year?
A normal year has 365 days and a leap year has 366. The converter uses the average length of a Gregorian year, 365.2425 days, so 1 year shows as 365.2425 days.
How many weeks are in a year?
52.1775 weeks on average (365.2425 ÷ 7). That is 52 weeks plus 1 or 2 days.
How do I convert hours to minutes?
Multiply the hours by 60. For example, 2.5 hours is 150 minutes, and 8 hours is 480 minutes.
How do I convert minutes to hours?
Divide the minutes by 60. For example, 90 minutes is 1.5 hours, 45 minutes is 0.75 hours and 20 minutes is 0.333333 hours.
How do I convert minutes to decimal hours?
Divide the minutes by 60. So 15 minutes is 0.25 hours, 30 minutes is 0.5 hours and 45 minutes is 0.75 hours. The Minutes to Decimal Hours table lists the most common ones.
How do I convert 1 hour 30 minutes to decimal hours?
Add the minutes as a fraction of an hour: 1 hour + 30 ÷ 60 = 1.5 hours. In the same way 1 hour 20 minutes is 1.333333 hours and 2 hours 45 minutes is 2.75 hours. You can also type 1 hr 30 min straight into the box.
Real months are 28 to 31 days long, so the converter uses the average: 30.436875 days, which is one twelfth of an average year and 730.485 hours.
How many milliseconds are in a second?
1,000 milliseconds. A millisecond is also 1,000 microseconds.
How many days are in a leap year?
366 days, which is 8,784 hours. A year is a leap year when it divides by 4, except centuries that do not divide by 400.
Can I type hours, minutes and seconds like 1:30?
Yes. Choose "Hours and minutes" in a list and type 1 hr 30 min, 1h 30m or 1:30. For minutes and seconds choose "Minutes and seconds" and type 2 min 15 sec or 2:15.
Are my numbers saved or shared?
No. The conversion happens in your browser, and the numbers you type are not stored or sent to any server. A link you copy keeps the numbers after the # sign, which browsers never send to a server.
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