"Sun, 09 Jun 2024 18:54:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240609
Only TIME
18:54:20
General datetime
2024-06-09 18:54:20Z
For Database
2024-06-09 18:54:20
For HTTP1.1
Sun, 09 Jun 2024 18:54:20 GMT