"Sun, 13 Oct 2024 17:49:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241013
Only TIME
17:49:21
General datetime
2024-10-13 17:49:21Z
For Database
2024-10-13 17:49:21
For HTTP1.1
Sun, 13 Oct 2024 17:49:21 GMT