CODE EXAMPLE FOR PYTHON

.drop duplicates()

df = pd.DataFrame({"Date": ["2022", "2022", "2021", "2021", "2020", "2020"], "Time": ["20:00", "20:00", "20:00", "21:00", "22:00", "22:00"]})
df.drop_duplicates()

#output
#	Date	Time
#	2022	20:00
#	2021	20:00
#	2021	21:00
#	2020	22:00