kahemker

import polars as pl
from datetime import datetime, timedelta

# Compatible with DataFrames too
df = (pl.LazyFrame(data={'start_time': [datetime(2019, 3, 9, 23, 0),
                                        datetime(2019, 3, 11, 23, 17),
                                        datetime(2019, 3, 12, 21, 45),
                                        datetime(2019, 3, 10, 0, 0)],
                         'end_time': [datetime(2019, 3, 26, 9, 20),
                                      datetime(2019, 3, 12, 8, 0),