"Wed, 18 Sep 2024 15:21:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240918
Only TIME
15:21:21
General datetime
2024-09-18 15:21:21Z
For Database
2024-09-18 15:21:21
For HTTP1.1
Wed, 18 Sep 2024 15:21:21 GMT