"Sat, 18 Jan 2025 12:15:32"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250118
Only TIME
12:15:32
General datetime
2025-01-18 12:15:32Z
For Database
2025-01-18 12:15:32
For HTTP1.1
Sat, 18 Jan 2025 12:15:32 GMT