"Sun, 20 Oct 2024 09:40:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241020
Only TIME
09:40:21
General datetime
2024-10-20 09:40:21Z
For Database
2024-10-20 09:40:21
For HTTP1.1
Sun, 20 Oct 2024 09:40:21 GMT