Pandas Datetime: Calculate all the sighting days of the unidentified flying object from current date

Last update on September 10 2025 12:45:46 (UTC/GMT +8 hours)

2. UFO Sighting Days from Current Date

Write a Pandas program to calculate all the sighting days of the unidentified flying object (ufo) from current date.

Sample Solution :

Python Code :

import pandas as pd
df = pd.read_csv(r'ufo.csv')
df['Date_time'] = df['Date_time'].astype('datetime64[ns]')
now = pd.to_datetime('today')
print("Original Dataframe:")
print(df.head())
print("\nCurrent date:")
print(now)

Sample Output:

Original Dataframe:
            Date_time                  city     ...       latitude   longitude
0 1910-06-01 15:00:00           wills point     ...      32.709167  -96.008056
1 1920-06-11 21:00:00                cicero     ...      40.123889  -86.013333
2 1929-07-05 14:00:00  buchanan  (or burns)     ...      43.642500 -118.627500
3 1931-06-01 13:00:00               abilene     ...      38.917222  -97.213611
4 1939-06-01 20:00:00              waterloo     ...      34.918056  -88.064167

[5 rows x 11 columns]

Current date:
2019-07-11 11:48:54.827800

For more Practice: Solve these Related Problems:

Write a Pandas program to calculate the number of days between today’s date and each UFO sighting date in the dataset.
Write a Pandas program to add a new column that shows the difference in days from the current date for every UFO report.
Write a Pandas program to filter UFO sighting records that occurred more than a specific number of days from today.
Write a Pandas program to compute and display a summary of day differences between current date and UFO sighting dates.

Go to:

PREV : Current Date.
NEXT : Date Range Analysis for UFO Sightings.

Python Code Editor:

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