"Sun, 31 Mar 2024 18:21:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240331
Only TIME
18:21:45
General datetime
2024-03-31 18:21:45Z
For Database
2024-03-31 18:21:45
For HTTP1.1
Sun, 31 Mar 2024 18:21:45 GMT