"Wed, 17 Apr 2024 20:00:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240417
Only TIME
20:00:21
General datetime
2024-04-17 20:00:21Z
For Database
2024-04-17 20:00:21
For HTTP1.1
Wed, 17 Apr 2024 20:00:21 GMT