In mathematics, degrees, minutes and seconds representing angles are represented by symbols such as ",".
1 =60′, 1′=60″ , 1 =3600″。
1 =60′=3600″
Minutes and seconds are hexadecimal, 1 degree =60 minutes, 1 minute =60 seconds, 1 degree =60×60 seconds =3600 seconds.
Extended data
1, the angle relation of each pointer of the clock:
(1) An ordinary clock is equivalent to a circle, and its hour hand or minute hand is equivalent to walking 360 degrees.
(2) The angle of each large grid on the clock is 30.
(3) The angle of the hour hand every 1 min should be 0.5.
(4) The angle of minute hand per 1 min should be: 6.
2. Conversion relationship of time units:
(1) One day = 1440 minutes, 1 hour =60 minutes, 1 minute =60 seconds.
(2) A moment = 15 minutes, and a word =5 minutes (used in southern Fujian and Guangdong).