"Sun, 31 Mar 2024 18:21:49"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240331
Only TIME
18:21:49
General datetime
2024-03-31 18:21:49Z
For Database
2024-03-31 18:21:49
For HTTP1.1
Sun, 31 Mar 2024 18:21:49 GMT