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Convert Hour to Month

Please provide values below to convert hour [h] to month, or vice versa.

From: hour
To: month


Definition: An hour (symbol: h) is a unit of time conventionally defined as 1/24 of a day and 3,600 seconds. In Coordinated Universal Time, a negative or positive leap second may be incorporated to keep the hour within 0.9 seconds of universal time, making an hour either 3,599 or 3,601 seconds in some cases.

History/origin: The term "hour" is derived from the Anglo-Norman "houre," which was in use around the 13th century.

There have been many definitions of the hour throughout history based on culture or region, such as the hour being divided into 1/12 of a period daylight or darkness. It is believed that the custom of dividing the cycle of day and night into 24 periods began with the ancient Egyptians.

Current use: The hour is used globally as a unit of time. Most forms of employment require a certain number of hours worked per day, with compensation being based on the measured or expected hours worked. Durations starting from 30 minutes (half an hour) are commonly used colloquially.


Definition: A month (symbol: mo) is a unit of time used with calendars that approximates the period required for the moon to revolve around Earth. A lunar month lasts approximately 29.53 days, where days are defined based on the SI (International System of Units) base unit of seconds. The Gregorian calendar is the most widely used calendar worldwide, with 365 days (366 in a leap year), 30 or 31 days in each of its 12 months, and 28 or 29 days in February depending on whether or not the year is a leap year.

History/origin: Numerous different calendars have been used throughout history with varying definitions of what constitutes a month. Some of these were lunar calendars based on the monthly cycles of the moon, others were solar calendars that indicated seasons based on the position of the sun relative to the stars, and some were lunisolar calendars that dictated the phase of the moon alongside the time of the solar year.

The Gregorian calendar, currently the preferred calendar for civil use, is a reformed version of the Julian calendar which originated from the ancient Roman calendar. It was introduced in 1582 as a reform to the previous Julian calendar which drifted with respect to the equinoxes by 11 minutes per year, which by 1582, resulted in a difference of 10 days from what was expected. In comparison, although the Gregorian calendar is imperfect, it has an error of 1 day in 3,030 years with respect to the current value of the mean solar year, rather than 1 day in 128 years.

Though there have since been proposals to further reform the calendar (to make it even more accurate), the Gregorian calendar is deeply ingrained in civil use and shows little sign of changing, barring any new significant discoveries.

Current use: The month is still used in various forms throughout the world. The most common is the use of a month within the Gregorian calendar. Certain cultures, such as that of the Chinese, use a lunisolar calendar in addition to the Gregorian calendar. Chinese New Year for example occurs at a different time each year. Other types of months are also used within astronomy, but the most typically understood form of the month is that of the Gregorian calendar.

Hour to Month Conversion Table

Hour [h]Month
0.01 h1.36986E-5 month
0.1 h0.0001369863 month
1 h0.001369863 month
2 h0.002739726 month
3 h0.004109589 month
5 h0.0068493151 month
10 h0.0136986301 month
20 h0.0273972603 month
50 h0.0684931507 month
100 h0.1369863014 month
1000 h1.3698630137 month

How to Convert Hour to Month

1 h = 0.001369863 month
1 month = 730 h

Example: convert 15 h to month:
15 h = 15 × 0.001369863 month = 0.0205479452 month

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