python - Python 中的时间比较

Question

我当前的项目是从网站上抓取天气数据进行计算。根据当前时间是在中午之前还是中午之后，此计算的一部分涉及不同的逻辑。

import pandas as pd
from bs4 import BeautifulSoup
import requests
import numpy as np  

# Arkansas State Plant Board Weather Web data
url1 = "http://170.94.200.136/weather/Inversion.aspx"
response1 = requests.get(url1)

soup1 = BeautifulSoup(response1.content)
table1 = soup1.find("table", id="MainContent_GridView1")

data1 = pd.read_html(str(table1),header=0)[0] 
data1.columns = ['Station', 'Low Temp (F)', 'Time of Low', 'Current Temp (F)', 'Current Time',  'Wind Speed (MPH)', 'Wind Dir', 'High Temp (F)', 'Time Of High']

print(url1)
print(data1[0:4])

array1 = np.array(data1[0:4])

这是我的代码，用于引入我需要的数据。但是，我不知道如何将我请求的当前时间作为 Unicode 字符串进行比较，以查看它是在中午之前还是之后。谁能帮我解决这个问题吗？

编辑:当前请求的一些数据

    Station  Low Temp (F) Time of Low  Current Temp (F) Current Time  \
0  Arkansas          69.0     5:19 AM              88.7      2:09 PM   
1    Ashley          70.4     4:39 AM              91.2      2:14 PM   
2   Bradley          69.4     4:09 AM              90.6      2:14 PM   
3    Chicot         -40.2     2:14 PM             -40.2      2:14 PM   

   Wind Speed (MPH)  Wind Dir  High Temp (F) Time Of High  
0               4.3       213           88.9      2:04 PM  
1               4.1       172           91.2      2:14 PM  
2               6.0       203           90.6      2:09 PM  
3               2.2       201          -40.1     12:24 AM  

Answer 1

只需检查子午线是下午还是上午。

 time = "2:09 PM"
 meridian = time.split(' ')[-1] # get just the meridian
 before_noon = meridian == 'AM'
 after_noon = meridian == 'PM'