"Sat, 20 Apr 2024 04:40:30"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240420
Only TIME
04:40:30
General datetime
2024-04-20 04:40:30Z
For Database
2024-04-20 04:40:30
For HTTP1.1
Sat, 20 Apr 2024 04:40:30 GMT