How to convert hours, minutes and seconds into seconds in mysql

In mysql, you can use the TIME_TO_SEC() function to convert hours, minutes, and seconds into seconds. The syntax is "TIME_TO_SEC("hour:minute:second")". The TIME_TO_SEC() function accepts a time value as a parameter and converts the parameter into seconds. The conversion formula is "(hour × 3600) (minute × 60) second".

The operating environment of this tutorial: windows7 system, mysql8 version, Dell G3 computer.

In mysql, you can use the TIME_TO_SEC() function to convert hours, minutes and seconds into seconds.

MySQL TIME_TO_SEC() function will accept a time value as a parameter, convert the parameter into seconds, and then return. The conversion formula is "(hour × 3600) (minute × 60) second".

Syntax:

TIME_TO_SEC(time)

Parameters	Description
time	Required. Time value

Example 1:

mysql> SELECT TIME_TO_SEC('15:15:15');

It can be seen from the execution results that according to the calculation formula " 15×3600 15×60 15” gives the result of seconds 54915.

Example 2:

mysql> SELECT TIME_TO_SEC('22:23:00');

It can be seen from the execution result that according to the calculation formula "22×3600 23×60", the result number of seconds is 80580.

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