"Sun, 10 Mar 2024 20:15:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240310
Only TIME
20:15:36
General datetime
2024-03-10 20:15:36Z
For Database
2024-03-10 20:15:36
For HTTP1.1
Sun, 10 Mar 2024 20:15:36 GMT