Convert 12 hour into 24 hour times

Question

I\'m trying to convert times from 12 hour times into 24 hour times...

Automatic Example times:

06:35  ## Morning
11:35  ## Morning (If m2 is anywhe         


        

Answer 1

%H Hour (24-hour clock) as a zero-padded decimal number.
%I Hour (12-hour clock) as a zero-padded decimal number.

m2 = "1:35" ## This is in the afternoon.
m2 = datetime.strptime(m2, "<b>%I</b>:%M")
print(m2)

Answer 2

Try this :)

Code:

currenttime = datetime.datetime.now().time().strftime("%H:%M")
if currenttime >= "10:00" and currenttime <= "13:00":
    if m2 >= "10:00" and m2 >= "12:00":
        m2 = ("""%s%s""" % (m2, " AM"))
    else:
        m2 = ("""%s%s""" % (m2, " PM"))
else:
    m2 = ("""%s%s""" % (m2, " PM"))
m2 = datetime.datetime.strptime(m2, '%I:%M %p')
m2 = m2.strftime("%H:%M %p")
m2 = m2[:-3]
print m2

Output:

13:35

Answer 3

def timeConversion(s):
    if "PM" in s:
        s=s.replace("PM"," ")
        t= s.split(":")
        if t[0] != '12':
            t[0]=str(int(t[0])+12)
            s= (":").join(t)
        return s
    else:
        s = s.replace("AM"," ")
        t= s.split(":")
        if t[0] == '12':
            t[0]='00'
            s= (":").join(t)
        return s

Answer 4

To convert 12 hour time format into 24 hour time format

''' To check whether time is 'AM' or 'PM' and whether it starts with 12 (noon or morning). In case time is after 12 noon then we add
12 to it, else we let it remain as such. In case time is 12 something in the morning, we convert 12 to (00) '''

def timeConversion(s):

    if s[-2:] == 'PM' and s[:2] != '12':
        time = s.strip('PM')
        conv_time = str(int(time[:2])+12)+time[2:]

    elif s[-2:] == 'PM' and s[:2] == '12':
        conv_time = s.strip('PM')

    elif s[-2:] == 'AM' and s[:2] == '12':
        time = s.strip('AM')
        conv_time = '0'+str(int(time[:2])-12)+time[2:]

    else:
        conv_time = s.strip('AM')
        
    return conv_time

Answer 5

This approach uses strptime and strftime with format directives as per https://docs.python.org/2/library/datetime.html#strftime-strptime-behavior, %H is the 24 hour clock, %I is the 12 hour clock and when using the 12 hour clock, %p qualifies if it is AM or PM.

    >>> from datetime import datetime
    >>> m2 = '1:35 PM'
    >>> in_time = datetime.strptime(m2, "%I:%M %p")
    >>> out_time = datetime.strftime(in_time, "%H:%M")
    >>> print(out_time)
    13:35

Answer 6

One more way to do this cleanly

def format_to_24hr(twelve_hour_time): return datetime.strftime( datetime.strptime( twelve_hour_time, '%Y-%m-%d %I:%M:%S %p' ), "%Y-%m-%d %H:%M:%S")