"Sun, 05 May 2024 04:40:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240505
Only TIME
04:40:21
General datetime
2024-05-05 04:40:21Z
For Database
2024-05-05 04:40:21
For HTTP1.1
Sun, 05 May 2024 04:40:21 GMT