pandas.Timestamp.is_month_start
- Timestamp.is_month_start
-
Check if the date is the first day of the month.
- Returns:
-
- bool
-
True if the date is the first day of the month.
See also
Timestamp.is_month_end-
Similar property indicating the last day of the month.
Examples
>>> ts = pd.Timestamp(2020, 3, 14) >>> ts.is_month_start False
>>> ts = pd.Timestamp(2020, 1, 1) >>> ts.is_month_start True
© 2008–2011, AQR Capital Management, LLC, Lambda Foundry, Inc. and PyData Development Team
© 2011–2025, Open source contributors
Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/2.3.0/reference/api/pandas.Timestamp.is_month_start.html