1 hour (hour) = 60 minutes (minutes) = 3600 seconds (seconds).
The hour is not the basic unit of the international system of time units (the basic unit of the international system of time units is seconds), but an auxiliary unit of time coordinated with the basic unit of the international system of units. Except leap second, one hour is generally equal to 3600 seconds, or 60 minutes, or 1/24 days.
Extended data
The so-called "quarter" is to divide a year into four parts on average. According to the order of spring, summer, autumn and winter, a year can be divided into four quarters, and each quarter lasts for three months. The first quarter: 65438+1October-March; The second quarter: April-June; Third quarter: July-September; The fourth quarter: 65438+ 10-65438+February.
A month is a unit of time in a calendar. It is assumed that its length should be equivalent to the natural orbital period of the moon's orbit around the earth, but traditionally the period of the moon's phase change is taken as the length of one month, that is, the length of one month (lunar month) is the rendezvous month (Wang Shuoyue), which is about 29.53 days.
Inferred from the study of unearthed cultural relics, in the early Paleolithic period, humans had already calculated the date according to the moon phase. Until now, the full moon is still the cornerstone of many calendars. A year is divided into 12 months; In China, the lunar year is 12 months and the leap year is 13 months. The extra month is called leap month.
Ten days, originally meant ten days. The concept of ten-day has existed since Xia Dynasty, and there are also ten-day characters in Oracle Bone Inscriptions. In ancient China, the drought was repeated every ten days, which was called ten days. So use a word "ten days" to express this concept of time.
China people still use ten days to mean ten days. January can be divided into three days, namely morning, noon and evening. At the same time, ten years old can be said to be ten years old. Such as: octogenarians and so on.
References:
Baidu Encyclopedia-Hour (Time Unit)
References:
Baidu Encyclopedia-Time Unit