"Sat, 15 Jun 2024 19:05:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
19:05:05
General datetime
2024-06-15 19:05:05Z
For Database
2024-06-15 19:05:05
For HTTP1.1
Sat, 15 Jun 2024 19:05:05 GMT