Day To Hour Conversion Chart

Day (d) Hour (h)
1 d24 h
2 d48 h
5 d120 h
10 d240 h
20 d480 h
40 d960 h
80 d1920 h
160 d3840 h
320 d7680 h
640 d15360 h
1280 d30720 h
2560 d61440 h

Convert from day to hour formula

Total hour = Total day x 24

For example, if you want to convert 15 Day to Hour then,

15 d = 15 x 24 = 360 h

Convert from hour to day formula

Total day =
Total hour
360 h
= 15 d


The unit of measurement "day" is defined as 86,400 SI seconds and symbolized d. A day is usually 24 hours, plus or minus a possible leap second in Coordinated Universal Time (UTC), and occasionally plus or minus an hour in those locations that change from or to daylight saving time.


An hour (symbol: h) is a unit of time usually equal 60 minutes. The time of day is typically expressed in English in terms of hours. Whole hours on a 12-hour clock are expressed using the contracted phrase o'clock, from the older of clock.