"Fri, 19 Apr 2024 20:15:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240419
Only TIME
20:15:21
General datetime
2024-04-19 20:15:21Z
For Database
2024-04-19 20:15:21
For HTTP1.1
Fri, 19 Apr 2024 20:15:21 GMT