"Sun, 16 Jun 2024 13:27:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240616
Only TIME
13:27:20
General datetime
2024-06-16 13:27:20Z
For Database
2024-06-16 13:27:20
For HTTP1.1
Sun, 16 Jun 2024 13:27:20 GMT