Initial commit

python/Date/Calculate a number of days between two dates.py

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+import datetime  
+from datetime import date  
+def differ_days(date1, date2):  
+  
+    a = date1  
+    b = date2  
+    return (a-b).days  
+print()  
+print(differ_days((date(2016,10,12)), date(2015,12,10)))  
+print(differ_days((date(2016,3,23)), date(2017,12,10)))  
+print()  

python/Date/Calculate an age in year.py

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+from datetime import date  
+  
+def calculate_age(dtob):  
+    today = date.today()  
+    return today.year - dtob.year - ((today.month, today.day) < (dtob.month, dtob.day))  
+print()  
+print(calculate_age(date(2006,10,12)))  
+print(calculate_age(date(1989,1,12)))  
+print()  

python/Date/Calculate number of days between two datetimes.py

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+import datetime  
+from datetime import datetime  
+  
+def differ_days(date1, date2):  
+    a = date1  
+    b = date2  
+    return (a-b).days  
+print()  
+print(differ_days((datetime(2016,10,12,0,0,0)), datetime(2015,12,10,0,0,0)))  
+print(differ_days((datetime(2016,10,12,0,0,0)), datetime(2015,12,10,23,59,59)))  
+print()  

python/Date/Calculate two date difference in seconds.py

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+from datetime import datetime, time  
+def date_diff_in_Seconds(dt2, dt1):  
+  timedelta = dt2 - dt1  
+  return timedelta.days * 24 * 3600 + timedelta.seconds  
+#Specified date  
+date1 = datetime.strptime('2015-01-01 01:00:00', '%Y-%m-%d %H:%M:%S')  
+#Current date  
+date2 = datetime.now()  
+print("\n%d seconds" %(date_diff_in_Seconds(date2, date1)))  
+print()  

python/Date/Calculates the date six months from the current date.py

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+import datetime  
+print((datetime.date.today() + datetime.timedelta(6*365/12)).isoformat()) 

python/Date/Convert a date to Unix timestamp.py

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+import datetime  
+import time  
+dt = datetime.datetime(2016, 2, 25, 23, 23)  
+print()  
+print("Unix Timestamp: ",(time.mktime(dt.timetuple())))  
+print() 

python/Date/Convert a date to timestamp.py

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+import time  
+import datetime  
+now = datetime.datetime.now()  
+print()  
+print(time.mktime(now.timetuple()))  
+print()  

python/Date/Convert a string date to the timestamp.py

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+import time  
+import datetime  
+s = "01/10/2016"  
+print()  
+print(time.mktime(datetime.datetime.strptime(s, "%d/%m/%Y").timetuple()))  
+print() 

python/Date/Convert a string into datetime.py

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+from datetime import datetime  
+  
+date_obj = datetime.strptime('May 12 2016  2:25AM', '%b %d %Y %I:%M%p')  
+print()  
+print(date_obj)  
+print()  

python/Date/Create 12 fixed dates from a specified date over a given period.py

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+import datetime  
+def every_20_days(date):  
+    print('Starting Date: {d}'.format(d=date))  
+    print("Next 12 days :")  
+    for _ in range(12):  
+        date=date+datetime.timedelta(days=20)  
+        print('{d}'.format(d=date))  
+  
+dt = datetime.date(2016,8,1)  
+every_20_days(dt) 

python/Date/Create a HTML calendar with data for a specific year and month.py

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+import calendar  
+htmlcal = calendar.HTMLCalendar(calendar.MONDAY)  
+print(htmlcal.formatmonth(2020, 12))  

python/Date/Display a calendar for a locale.py

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+import calendar  
+cal = calendar.LocaleTextCalendar(locale='en_AU.utf8')  
+print(cal.prmonth(2025, 9))

python/Date/Display a list of the dates for the 2nd Saturday of every month for a given year.py

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+import calendar  
+# Show every month  
+for month in range(1, 13):  
+    cal = calendar.monthcalendar(2020, month)  
+    first_week  = cal[0]  
+    second_week = cal[1]  
+    third_week  = cal[2]  
+  
+    # If a Saturday presents in the first week, the second Saturday  
+    # is in the second week.  Otherwise, the second Saturday must   
+    # be in the third week.  
+      
+    if first_week[calendar.THURSDAY]:  
+        holi_day = second_week[calendar.THURSDAY]  
+    else:  
+        holi_day = third_week[calendar.THURSDAY]  
+  
+    print('%3s: %2s' % (calendar.month_abbr[month], holi_day)) 

python/Date/Display a simple, formatted calendar of a given year and month.py

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+import calendar  
+print('Print a calendar for a year and month:')  
+month = int(input('Month (mm): '))  
+year = int(input('Year (yyyy): '))  
+print('\n')  
+   
+calendar.setfirstweekday(calendar.SUNDAY)  
+cal = calendar.monthcalendar(year, month)  
+   
+if len(str(month)) == 1:  
+    month = '0%s' % month  
+   
+# Header  
+print('|++++++ %s-%s +++++|' % (month, year))  
+print('|Su Mo Tu We Th Fr Sa|')  
+print('|--------------------|')  
+   
+# display calendar  
+border = '|'  
+for week in cal:  
+    line = border  
+  
+        
+    for day in week:  
+        if day == 0:  
+      # 3 spaces for blank days         
+         line += '   '   
+        elif len(str(day)) == 1:  
+            line += ' %d ' % day  
+        else:  
+         line += '%d ' % day  
+    # remove space in last column  
+    line = line[0:len(line) - 1]    
+    line += border  
+    print(line)  
+   
+print('|--------------------|\n')  

python/Date/Display formatted text output of a month and start weeks on Sunday.py

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+import calendar  
+cal = calendar.TextCalendar(calendar.SUNDAY)  
+print('First Month - 2022')  
+print(cal.prmonth(2022, 1))  

python/Date/Display the date and time in a human-friendly string.py

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+import time  
+print()  
+print(time.ctime())  
+print()  

python/Date/Drop microseconds from datetime.py

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+import datetime  
+dt = datetime.datetime.today().replace(microsecond=0)  
+print()  
+print(dt)  
+print()  

python/Date/Find the date of the first Monday of a given week.py

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+import time
+print(time.asctime(time.strptime('2015 50 1', '%Y %W %w')))

python/Date/Generate RFC 3339 timestamp.py

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+from datetime import datetime, timezone  
+local_time = datetime.now(timezone.utc).astimezone()  
+print()  
+print(local_time.isoformat())  
+print() 

python/Date/Generate a date and times as a string.py

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+import datetime  
+# Current time  
+now = datetime.datetime.now()  
+# Make a note of the date and time in a string  
+# Date and time in string : 2016-11-05 11:24:24 PM  
+datestr = "# In string: " + now.strftime("%Y-%m-%d %H:%M:%S %p") + "\n"  
+print()  
+print(datestr)  
+print()

python/Date/Get a list of dates between two dates.py

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+from datetime import timedelta, date  
+  
+def daterange(date1, date2):  
+    for n in range(int ((date2 - date1).days)+1):  
+        yield date1 + timedelta(n)  
+  
+start_dt = date(2015, 12, 20)  
+end_dt = date(2016, 1, 11)  
+for dt in daterange(start_dt, end_dt):  
+    print(dt.strftime("%Y-%m-%d"))  

python/Date/Get last modified information of a file.py

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+import os, time  
+def last_modified_fileinfo(filepath):  
+      
+    filestat = os.stat(filepath)  
+    date = time.localtime((filestat.st_mtime))  
+  
+    # Extract year, month and day from the date  
+    year = date[0]  
+    month = date[1]  
+    day = date[2]  
+    # Extract hour, minute, second  
+    hour = date[3]  
+    minute = date[4]  
+    second = date[5]  
+      
+    # Year  
+    strYear = str(year)[0:]  
+  
+    # Month  
+    if (month <=9):  
+        strMonth = '0' + str(month)  
+    else:  
+        strMonth = str(month)  
+  
+    # Date  
+    if (day <=9):  
+        strDay = '0' + str(day)  
+    else:  
+        strDay = str(day)  
+  
+    return (strYear+"-"+strMonth+"-"+strDay+" "+str(hour)+":"+str(minute)+":"+str(second))  
+print()  
+print(last_modified_fileinfo('test.txt'))  
+print()  

python/Date/Get the GMT and local current time.py

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+from time import gmtime, strftime  
+import time  
+print("\nGMT: "+time.strftime("%a, %d %b %Y %I:%M:%S %p %Z", time.gmtime()))  
+print("Local: "+strftime("%a, %d %b %Y %I:%M:%S %p %Z\n")) 

python/Date/Get the current date time information.py

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+import time  
+import datetime  
+  
+print()  
+print("Time in seconds since the epoch: %s" %time.time())  
+print("Current date and time: " , datetime.datetime.now())  
+print("Alternate date and time: " ,datetime.datetime.now().strftime("%y-%m-%d-%H-%M"))  
+print("Current year: ", datetime.date.today().strftime("%Y"))  
+print("Month of year: ", datetime.date.today().strftime("%B"))  
+print("Week number of the year: ", datetime.date.today().strftime("%W"))  
+print("Weekday of the week: ", datetime.date.today().strftime("%w"))  
+print("Day of year: ", datetime.date.today().strftime("%j"))  
+print("Day of the month : ", datetime.date.today().strftime("%d"))  
+print("Day of week: ", datetime.date.today().strftime("%A"))  
+print()  

python/Date/Get the current week.py

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+import datetime  
+Jan1st = datetime.date(2017,10,12)  
+year,week_num,day_of_week = Jan1st.isocalendar() # DOW = day of week  
+print()  
+print("Year %d, Week Number %d, Day of the Week %d" %(year,week_num, day_of_week))  
+print() 

python/Date/Get the dates 30 days before and after from the current date.py

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+from datetime import date, timedelta  
+  
+current_date = date.today().isoformat()     
+days_before = (date.today()-timedelta(days=30)).isoformat()  
+days_after = (date.today()+timedelta(days=30)).isoformat()    
+  
+print("\nCurrent Date: ",current_date)  
+print("30 days before current date: ",days_before)  
+print("30 days after current date : ",days_after)  

python/Date/Get the first and last second.py

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+import datetime  
+print("First Second: ", datetime.time.min)  
+print("Last Second: ", datetime.time.max)  

python/Date/Print a 3-column calendar for an entire year.py

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+import calendar  
+cal = calendar.TextCalendar(calendar.SUNDAY)  
+# year: 2022, column width: 2, lines per week: 1   
+# number of spaces between month columns: 1  
+# 3: no. of months per column.  
+print(cal.formatyear(2022, 2, 1, 1, 3))  

python/Date/Print a string five times, delay three seconds.py

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+import time   
+x=0  
+print("\nw3resource will print five  times, delay for three seconds.")  
+while x<5:  
+    print("w3resource")  
+    time.sleep(3)  
+    x=x+1  

python/Date/Program to add a month with a specified date.py

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+from datetime import date, timedelta  
+import calendar  
+start_date = date(2014, 12, 25)  
+days_in_month = calendar.monthrange(start_date.year, start_date.month)[1]  
+print(start_date + timedelta(days=days_in_month))  

python/Date/Program to count the number of Monday of the 1st day of the month between two years.py

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+import datetime  
+from datetime import datetime  
+monday1 = 0  
+months = range(1,13)  
+for year in range(2015, 2017):  
+    for month in months:  
+        if datetime(year, month, 1).weekday() == 0:  
+            monday1 += 1  
+print(monday1)  

python/Date/Program to get days between two dates.py

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+from datetime import date  
+a = date(2000,2,28)  
+b = date(2001,2,28)  
+print(b-a)  

python/Date/Program to get the date of the last Tuesday.py

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+from datetime import date
+from datetime import timedelta
+today = date.today()
+offset = (today.weekday() - 1) % 7
+last_tuesday = today - timedelta(days=offset)
+print(last_tuesday)

python/Date/Program to get the last day of a specified year and month.py

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+import calendar  
+year = 2015  
+month = 2  
+print(calendar.monthrange(year, month)[1])  

python/Date/Program to get the number of days of a given month and year.py

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+from calendar import monthrange  
+year = 2016  
+month = 2  
+print(monthrange(year, month))  

python/Date/Program to get week number.py

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+import datetime
+print(datetime.date(2015, 6, 16).isocalendar()[1])

python/Date/Program to select all the Sundays of a specified year.py

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+from datetime import date, timedelta  
+  
+def all_sundays(year):  
+# January 1st of the given year  
+       dt = date(year, 1, 1)  
+# First Sunday of the given year         
+       dt += timedelta(days = 6 - dt.weekday())    
+       while dt.year == year:  
+          yield dt  
+          dt += timedelta(days = 7)  
+            
+for s in all_sundays(2020):  
+   print(s)  

python/Date/Program to test the third Tuesday of a month.py

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+from datetime import datetime   
+def is_third_tuesday(s):  
+    d = datetime.strptime(s, '%b %d, %Y')  
+    return d.weekday() == 1 and 14 < d.day < 22  
+  
+print(is_third_tuesday('Jun 23, 2015')) #False  
+print(is_third_tuesday('Jun 16, 2015')) #True   
+print(is_third_tuesday('Jul 21, 2015')) #False  

python/Date/Python program to add 5 seconds with the current time.py

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+import datetime  
+x= datetime.datetime.now()  
+y = x + datetime.timedelta(0,5)  
+print(x.time())  
+print(y.time())  

python/Date/Python program to convert Year Month Day to Day of Year.py

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+import datetime
+today = datetime.datetime.now()
+day_of_year = (today - datetime.datetime(today.year, 1, 1)).days + 1
+print(day_of_year)

python/Date/Python program to convert a string to datetime.py

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+from datetime import datetime  
+date_object = datetime.strptime('Jul 1 2014 2:43PM', '%b %d %Y %I:%M%p')  
+print(date_object)  

python/Date/Python program to convert the date to datetime (midnight of the date).py

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+from datetime import date  
+from datetime import datetime  
+dt = date.today()  
+print(datetime.combine(dt, datetime.min.time()))  

python/Date/Python program to convert unix timestamp string to readable date.py

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+import datetime  
+print(  
+    datetime.datetime.fromtimestamp(  
+        int("1284105682")  
+    ).strftime('%Y-%m-%d %H:%M:%S')  
+)  

python/Date/Python program to determine whether a given year is a leap year.py

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+def leap_year(y):  
+    if y % 400 == 0:  
+        return True  
+    if y % 100 == 0:  
+        return False  
+    if y % 4 == 0:  
+        return True  
+    else:  
+        return False  
+print(leap_year(1900))  
+print(leap_year(2004))  

python/Date/Python program to get current time in milliseconds.py

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+import time
+milli_sec = int(round(time.time() * 1000))
+print(milli_sec)

python/Date/Python program to get the current time.py

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+import datetime  
+print(datetime.datetime.now().time())

python/Date/Python program to print next 5 days starting from today.py

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+import datetime  
+base = datetime.datetime.today()  
+for x in range(0, 5):  
+      print(base + datetime.timedelta(days=x))  

python/Date/Python program to print yesterday, today, tomorrow.py

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+import datetime   
+today = datetime.date.today()  
+yesterday = today - datetime.timedelta(days = 1)  
+tomorrow = today + datetime.timedelta(days = 1)   
+print('Yesterday : ',yesterday)  
+print('Today : ',today)  
+print('Tomorrow : ',tomorrow)  

python/Date/Python program to subtract five days from current date.py

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+from datetime import date, timedelta  
+dt = date.today() - timedelta(5)  
+print('Current Date :',date.today())  
+print('5 days before Current Date :',dt)