ISO 8601 in Python strftime()
The international standard timestamp used by APIs, logs, and databases.
Format string
%Y-%m-%dT%H:%M:%S%z
Example output
2026-06-18T13:45:30
Edit this format in the live tester →
In Python
from datetime import datetime
dt = datetime(2026, 6, 18, 13, 45, 30)
dt.strftime("%Y-%m-%dT%H:%M:%S%z")
# => "2026-06-18T13:45:30"Directives used
| %Y | Year with century as a decimal number. | 2026 |
| %m | Month as a zero-padded number (01–12). | 06 |
| %d | Day of the month, zero-padded (01–31). | 18 |
| %H | Hour (24-hour clock), zero-padded (00–23). | 13 |
| %M | Minute, zero-padded (00–59). | 45 |
| %S | Second, zero-padded (00–59; up to 61 historically for leap seconds). | 30 |
| %z | UTC offset as ±HHMM (empty if the datetime is naive). |