"Sat, 23 Mar 2024 18:41:44"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240323
Only TIME
18:41:44
General datetime
2024-03-23 18:41:44Z
For Database
2024-03-23 18:41:44
For HTTP1.1
Sat, 23 Mar 2024 18:41:44 GMT