MySQL TIME_TO_SEC() Function
Example
Convert a time value into numeric seconds:
  SELECT TIME_TO_SEC("19:30:10");
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Definition and Usage
The TIME_TO_SEC() function converts a time value into numeric seconds.
Syntax
  TIME_TO_SEC(time)Parameter Values
| Parameter | Description | 
|---|---|
| time | Required. The time value to convert | 
Technical Details
| Works in: | MySQL 5.7, MySQL 5.6, MySQL 5.5, MySQL 5.1, MySQL 5.0, MySQL 4.1, MySQL 4.0, MySQL 3.23 | 
|---|
More Examples
Example
Convert a time value into numeric seconds:
  SELECT TIME_TO_SEC("00:00:05");
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Example
Convert a time value into numeric seconds:
  SELECT TIME_TO_SEC("03:30:00.999999");
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Example
Convert a time value into numeric seconds:
  SELECT TIME_TO_SEC("-03:30:00");
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