shape: (3, 2)
| Appointment | Date |
|---|---|
| str | date |
| "Dentist" | 2026-06-02 |
| "Doctor" | 2026-07-15 |
| "Therapist" | 2026-09-05 |
Move dates back and forward in polars
offset_by
100DaysOfPolars
Sometimes, you may want to change the dates of your appointments, either moving them forward or backward. Below is a dataframe showing your appointments.
Move dates back or forward
(df
.with_columns(One_Month_Past=pl.col('Date').dt.offset_by('-1mo'))
.with_columns(Five_Days_Future=pl.col('Date').dt.offset_by('5d'))
)
shape: (3, 4)
| Appointment | Date | One_Month_Past | Five_Days_Future |
|---|---|---|---|
| str | date | date | date |
| "Dentist" | 2026-06-02 | 2026-05-02 | 2026-06-07 |
| "Doctor" | 2026-07-15 | 2026-06-15 | 2026-07-20 |
| "Therapist" | 2026-09-05 | 2026-08-05 | 2026-09-10 |
Note
- To move dates closer to the present, use a negative value such as
-1mo. - To move dates farther into the future, use a positive value such as
5d.
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