pandas: Match data by months and days

Question

How can I match data only by months and dates and not by year:

1. Data

2. Desired output

Answer 1

Convert Time column to datetimes and then to custom format MM/DD/ and then aggregate:

df['Time'] = pd.to_datetime(df['Time']).dt.strftime('%m/%d/')

df1 = df.groupby('Time').first()

If need aggregate sum, mean if duplicates use:

df2 = df.groupby('Time').sum(min_count=1)
df3 = df.groupby('Time').mean()