title: Numpy busday_count not considering holidays
body: <p>I have a dataset and I need to calculate working days from a given date to today, excluding the given list of holidays. I will be including weekends.</p>
  <p>Date Sample:</p>
  <p><a href="https://i.stack.imgur.com/yWKjt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yWKjt.png" alt="enter image description here" /></a></p>
  <p>This is the code I tried:</p>
  <pre><code>import pandas as pd
  import numpy as np
  from datetime import date
  df = pd.read_excel('C:\\sample.xlsx')
  
  #get todays date
  df[&quot;today&quot;] = date.today()
  #Convert data type
  start = df[&quot;R_REL_DATE&quot;].values.astype('datetime64[D]')
  end = df[&quot;today&quot;].values.astype('datetime64[D]')
  holiday = ['2021-06-19', '2021-06-20']
  #Numpy function to find in between days
  days = np.busday_count(start, end, weekmask='1111111', holidays=holiday)
  #Add this column to dataframe
  df[&quot;Days&quot;] = days
  df
  </code></pre>
  <p>When I run this code, it gives difference between R_REL_DATE and today, but doesn't subtract given holidays.
  <a href="https://i.stack.imgur.com/BEOPh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/BEOPh.png" alt="enter image description here" /></a></p>
  <p>Please help, I want the given list of holidays deducted from the days.</p>