"Wed, 18 Sep 2024 19:29:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240918
Only TIME
19:29:21
General datetime
2024-09-18 19:29:21Z
For Database
2024-09-18 19:29:21
For HTTP1.1
Wed, 18 Sep 2024 19:29:21 GMT