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Convert Month to Second

Please provide values below to convert month to second [s], or vice versa.

From: month
To: second
     

Month

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.

Second

Definition: A second is the base unit of time in the International System of Units (SI). It is defined based on cesium frequency, ΔνC, "by taking the unperturbed ground-state hyperfine transition frequency of the caesium-133 atom to be 9,192,632,770 when expressed in hertz, which is equal to s-1." This definition was adopted in late 2018, and is largely the same as the previous definition, except that the conditions are more rigorously defined.

History/origin: Unlike many units that have had numerous definitions throughout history, the second has only had four different definitions.

The second was historically defined as 1/86400 of a day in 1832, which was based on the definition of a day as the approximate amount of time required for the Earth to complete a full rotation cycle relative to the sun.

The second was also defined as a fraction of an extrapolated year in the late 1940s with the advent of quartz crystal oscillator clocks. This resulted in a second defined as "1/31,556,925.9747 of the tropical year for 1900 January 0 at 12 hours ephemeris time," in 1956. This definition was adopted as part of SI in 1960.

In 1967, the second was defined exactly as "9,192,631,770 times the period of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom." This definition has since been updated as of late 2018 to be more rigorously defined, but otherwise, is effectively the same. This new rigor does not affect how the second is used in everyday life.

Current use: As the SI base unit of time, the second and its multiples are ubiquitous. There are few, if any, modern applications in which time is measured in a form other than the second and its multiples.



Month to Second Conversion Table

MonthSecond [s]
0.01 month26280 s
0.1 month262800 s
1 month2628000 s
2 month5256000 s
3 month7884000 s
5 month13140000 s
10 month26280000 s
20 month52560000 s
50 month131400000 s
100 month262800000 s
1000 month2628000000 s


How to Convert Month to Second

1 month = 2628000 s
1 s = 3.8051750380518E-7 month

Example: convert 15 month to s:
15 month = 15 × 2628000 s = 39420000 s



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