"Sun, 15 Sep 2024 07:21:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
07:21:09
General datetime
2024-09-15 07:21:09Z
For Database
2024-09-15 07:21:09
For HTTP1.1
Sun, 15 Sep 2024 07:21:09 GMT