python_datetime_rfc3339_isoformat_serialize_and_parse.py

1from datetime import datetime, timezone
2
3# Create a current datetime object in UTC
4now = datetime.now(timezone.utc)
5
6# Convert to RFC 3339 / ISO 8601 string (e.g., "2023-10-27T10:30:00+00:00")
7# Using timespec='seconds' or 'microseconds' ensures consistent formatting
8rfc3339_string = now.isoformat(timespec='seconds')
9print(f"Serialized: {rfc3339_string}")
10
11# Parse an RFC 3339 string back into a datetime object
12# Note: fromisoformat handles 'Z' and offset formats (like +00:00) in Python 3.11+
13parsed_date = datetime.fromisoformat(rfc3339_string)
14print(f"Parsed:     {parsed_date}")