"Sun, 23 Jun 2024 09:00:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240623
Only TIME
09:00:21
General datetime
2024-06-23 09:00:21Z
For Database
2024-06-23 09:00:21
For HTTP1.1
Sun, 23 Jun 2024 09:00:21 GMT