"Thu, 18 Jul 2024 18:40:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240718
Only TIME
18:40:21
General datetime
2024-07-18 18:40:21Z
For Database
2024-07-18 18:40:21
For HTTP1.1
Thu, 18 Jul 2024 18:40:21 GMT