As we know that this function converts a number of seconds into TIMESTAMP value. So by providing 0 seconds as the argument, it will give us the starting range of TIMESTAMP data type.
mysql> Select FROM_UNIXTIME(0); +-------------------------+ | FROM_UNIXTIME(0) | +-------------------------+ | 1970-01-01 05:30:00 | +-------------------------+ 1 row in set (0.00 sec)
Now if we will change the argument from 0 to 60 seconds then the time will be changed by 01 minutes.
mysql> Select FROM_UNIXTIME(60); +-------------------------+ | FROM_UNIXTIME(60) | +-------------------------+ | 1970-01-01 05:31:00 | +-------------------------+ 1 row in set (0.00 sec)