함수 time diff()

time_diff

time_difference

1 Excel

• A1 = 2000-01-01 00:00:00
• A2 = 2000-01-02 12:34:56

=(A2-A1)*86400
// 131696

2 PHP

$dt1 = '2000-01-01 00:00:00';
$dt2 = '2000-01-02 12:34:56';
echo date('U',strtotime($dt2))-date('U',strtotime($dt1));
// 131696

function time_diff($dt1, $dt2) {
  return date('U',strtotime($dt2))-date('U',strtotime($dt1));
}
$dt1 = '2000-01-02 12:34:56';
$dt2 = '2000-01-01 00:00:00';
echo time_diff($dt1, $dt2);
// -131696

3 같이 보기

• 함수 date_diff
• 함수 datetime2unixtime