"Sun, 28 Apr 2024 22:20:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240428
Only TIME
22:20:21
General datetime
2024-04-28 22:20:21Z
For Database
2024-04-28 22:20:21
For HTTP1.1
Sun, 28 Apr 2024 22:20:21 GMT