How to add minutes to a datetime range comparison? - python

How can I alter the below to account for minutes as well as our in datetime range?
For example the below works fine.
from datetime import datetime
if (datetime.now().hour>=14) and (datetime.now().hour<=16):
print ('afternoon' )
else:
print ('not afternoon')
If the time now is past 14:30 but before 16:30 print afternoon.

You can use time from datetime to make timeobjects. So you can create a time object for your start time and a time object for your end time. then you can just extract the timeobject from you datetime and compare it with a simple between expression. I have used timedelta, to just manipulate the current date time to show this working.
from datetime import datetime, timedelta, time
datetimes = []
datetimes.append(datetime.now())
datetimes.append(datetimes[-1] + timedelta(hours=3, minutes=20))
datetimes.append(datetimes[-1] + timedelta(hours=3, minutes=20))
start_time = time(14, 30)
end_time = time(16, 30)
for current in datetimes:
print(f"Time: {current.hour:02}:{current.minute:02}")
if start_time <= current.time() <= end_time:
print("afternoon")
else:
print("not afternoon")
OUTPUT
Time: 11:22
not afternoon
Time: 14:42
afternoon
Time: 18:02
not afternoon

from datetime import datetime, time
def checkTime(t):
if time(14, 30) <= t <= time(16, 30):
print("time: " + t.strftime("%H") + "h" + " " + t.strftime("%M") + "m" + " is afternoon" )
else:
print("time: " + t.strftime("%H") + "h" + " " + t.strftime("%M") + "m" + " is not afternoon" )
checkTime(time(15,15)) # time: 15h 15m is afternoon
checkTime(time(14,30)) # time: 14h 30m is afternoon
checkTime(time(15,31)) # time: 15h 31m is afternoon
checkTime(time(14,29)) # time: 14h 29m is not afternoon
checkTime(time(16,31)) # time: 16h 31m is not afternoon
checkTime(time(18,10)) # time: 18h 10m is not afternoon

Related

get the start and end timestamp of the current week in python

I need to get the timestamps in milliseconds based on the current day. The start timestamp must be Monday 00:00 (start of the day of the current week) and the end timestamp should be the end of the week which in my case ends with Friday 23:59. I have an implementation that does not give the timestamps from 00:00 to 23:59 maybe you can help me change my solution
.
from datetime import date, datetime, timedelta
today = date.today()
start = today - timedelta(days=today.weekday())
end = start + timedelta(days=4)
print("Today: " + str(today))
print("Start: " + str(start))
print("End: " + str(end))
You can use datetime.replace():
from datetime import date, datetime, timedelta
today = datetime.now() # or .today()
start = (today - timedelta(days=today.weekday())).replace(hour=0, minute=0, second=0, microsecond=0)
end = (start + timedelta(days=4)).replace(hour=23, minute=59, second=0, microsecond=0)
print("Today: " + str(today))
print("Start: " + str(start))
print("End: " + str(end))
output
Today: 2021-07-08 22:56:19.277242
Start: 2021-07-05 00:00:00
End: 2021-07-09 23:59:00
Start with a datetime to include time fields, but create it only from the year, month, day values of the date.today().
Subtract the current weekday to get to Monday 0:0:0.
Add 5 days to get to Saturday 0:0:0 and subtract 1 minute to get to Friday 23:59:00.
from datetime import date, datetime, timedelta, time
# use a datetime to get the time fields but init it just with a date to default to 0:0:0
today = datetime(date.today().year, date.today().month, date.today().day)
start = today - timedelta(days=today.weekday())
end = start + timedelta(days=5) - timedelta(minutes=1)
print("Today: " + str(today))
print("Start: " + str(start))
print("End: " + str(end))
Output:
Today: 2021-07-08 21:55:41.062506
Start: 2021-07-05 00:00:00
End: 2021-07-09 23:59:00
Something like this works:
from datetime import date, datetime, time
today = date.today()
week_start = datetime(today.year,
today.month,
today.day - today.weekday())
week_end = datetime(today.year,
today.month,
today.day + 7 - today.weekday(),
time.max.hour,
time.max.minute,
time.max.second,
time.max.microsecond)
print(week_start, week_end)
It gives:
2021-07-05 00:00:00 2021-07-11 00:00:00

Python Timer Cooldown Example

I'm looking for a cooldown timer for python, basically just to print days,hours,minutes,seconds left from a certain date.
Thanks very much!
You can get the counter with the help of time delta function.
import datetime
import time
future_date = datetime.datetime.now()+ datetime.timedelta(seconds=3)
while True:
curr_date = datetime.datetime.now()
rem_time = future_date - curr_date
total_seconds = int(rem_time.total_seconds())
if total_seconds > 0:
days, h_remainder = divmod(total_seconds, 86400)
hours, remainder = divmod(h_remainder, 3600)
minutes, seconds = divmod(remainder, 60)
print("Time Left: {} days, {} hours, {} minutes, {} seconds".format(days, hours, minutes, seconds))
time.sleep(1)
else:
break
sample output will be:
Time Left: 0 days, 0 hours, 0 minutes, 2 seconds
Time Left: 0 days, 0 hours, 0 minutes, 1 seconds
Try this. The module datetime is preinstalled on Python, I believe.
import datetime
while True:
print("\033[H\033[J")
present = datetime.datetime.now()
future = datetime.datetime(2022, 3, 31, 8, 0, 0)
difference = future - present
print(difference)
The format for datetime's future is: year, month, day, hour, minute, second.
Or, if you'd like to have user input:
import datetime
year = int(input('Enter the year of the end date: '))
month = int(input('Enter the month of the end date: '))
day = int(input('Enter the day of the end date: '))
hour = int(input('Enter the hour of the end date: '))
minute = int(input('Enter the minute of the end date: '))
second = int(input('Enter the second of the end date (a little tricky): '))
future = datetime.datetime(year, month, day, hour, minute, second)
while True:
print("\033[H\033[J")
present = datetime.datetime.now()
difference = future - present
if present >= future:
break
print(difference)
print('Time reached!')
You can use the seconds from a timedelta from subtracting two dates to calculate the days, hours, minutes and seconds like this:
from datetime import datetime
import time
totalSecs = 1 #So the while loop doesn't stop immidiately
while totalSecs > 0:
startDate = datetime.now() #Can be any date
endDate = datetime(2021, 12, 25)
delta = endDate - startDate
totalSecs = delta.total_seconds()
days = divmod(totalSecs, 86400)
hrs = divmod(days[1], 3600)
mins = divmod(hrs[1], 60)
seconds = divmod(mins[1], 1)
print("{:02d}:{:02d}:{:02d}:{:02d}".format(int(days[0]), int(hrs[0]), int(mins[0]), int(seconds[0]))) #Zero pad all the numbers
time.sleep(1) #Print every second.
Thank you all for your replies, i've done a mistake when i made the post. Is not from a date. Is a countdown in day,hours,minutes,seconds from a certain amount of seconds. Let's say i've got 31104000 seconds and i want to print how many days,hours,minutes,seconds left from that amount of seconds.
The code i've got now is a bit trivial and i can't print seconds in realtime.
def SecondToDHM(time):
if time < 60:
return "%.2f %s" % (time, SECOND)
second = int(time % 60)
minute = int((time / 60) % 60)
hour = int((time / 60) / 60) % 24
day = int(int((time / 60) / 60) / 24)
text = ""
if day > 0:
text += str(day) + DAY
text += " "
if hour > 0:
text += str(hour) + HOUR
text += " "
if minute > 0:
text += str(minute) + MINUTE
text += " "
if second > 0:
text += str(second) + SECOND
return text
import datetime
a = datetime.datetime.now()
"%s:%s.%s" % (a.minute, a.second, str(a.microsecond))

Converting 12 hour format time string (with am/pm) into UTC in 24 hour format

I have time string 11:15am or 11:15pm.
I am trying to convert this string into UTC timezone with 24 hour format.
FROM EST to UTC
For example: When I pass 11:15am It should convert into 15:15 and when I pass 11:15pm then it should convert to 3:15.
I have this code which I am trying:
def appointment_time_string(time_str):
import datetime
a = time_str.split()[0]
# b = re.findall(r"[^\W\d_]+|\d+",a)
# c = str(int(b[0]) + 4) + ":" + b[1]
# print("c", c)
in_time = datetime.datetime.strptime(a,'%I:%M%p')
print("In Time", in_time)
start_time = str(datetime.datetime.strftime(in_time, "%H:%M:%S"))
print("Start TIme", start_time)
if time_str.split()[3] == 'Today,':
start_date = datetime.datetime.utcnow().strftime("%Y-%m-%dT")
elif time_str.split()[3] == 'Tomorrow,':
today = datetime.date.today( )
start_date = (today + datetime.timedelta(days=1)).strftime("%Y-%m-%dT")
appointment_time = str(start_date) + str(start_time)
return appointment_time
x = appointment_time_string(time_str)
print("x", x)
But this is just converting to 24 hour not to UTC.
To convert the time from 12 hours to 24 hours format, you may use below code:
from datetime import datetime
new_time = datetime.strptime('11:15pm', '%I:%M%p').strftime("%H:%M")
# new_time: '23:15'
In order to convert time from EST to UTC, the most reliable way is to use third party library pytz. Refer How to convert EST/EDT to GMT? for more details
Developed the following script using provided options/solutions to satisfy my requirement.
def appointment_time_string(time_str):
import datetime
import pytz
a = time_str.split()[0]
in_time = datetime.datetime.strptime(a,'%I:%M%p')
start_time = str(datetime.datetime.strftime(in_time, "%H:%M:%S"))
if time_str.split()[3] == 'Today,':
start_date = datetime.datetime.utcnow().strftime("%Y-%m-%d")
elif time_str.split()[3] == 'Tomorrow,':
today = datetime.date.today( )
start_date = (today + datetime.timedelta(days=1)).strftime("%Y-%m-%d")
appointment_time = str(start_date) + " " + str(start_time)
# print("Provided Time", appointment_time)
utc=pytz.utc
eastern=pytz.timezone('US/Eastern')
fmt='%Y-%m-%dT%H:%M:%SZ'
# testeddate = '2016-09-14 22:30:00'
test_date = appointment_time
dt_obj = datetime.datetime.strptime(test_date,'%Y-%m-%d %H:%M:%S')
dt_str = datetime.datetime.strftime(dt_obj, '%m/%d/%Y %H:%M:%S')
date=datetime.datetime.strptime(dt_str,"%m/%d/%Y %H:%M:%S")
date_eastern=eastern.localize(date,is_dst=None)
date_utc=date_eastern.astimezone(utc)
# print("Required Time", date_utc.strftime(fmt))
return date_utc.strftime(fmt)

Incorrect results of converting between python datetime and timestamp

The output of following code is totally wrong:
import time
from datetime import datetime
def sec_to_date(sec, format="%m/%d/%Y %H:%M:%S"):
tmp = datetime.fromtimestamp(sec)
fmtdate = tmp.strftime(format)
return fmtdate
def date_to_sec(fmtdate, format="%m/%d/%Y %H:%M:%S"):
t_tuple = time.strptime(fmtdate, format)
sec = time.mktime(t_tuple)
return sec
if __name__ == "__main__":
fmtdate = sec_to_date(1380204000)
print "1380204000 sec to date " + fmtdate
fmtdate = sec_to_date(1388355120)
print "1388355120 sec to date " + fmtdate
sec = date_to_sec("09/26/2013 10:00:00")
print "09/26/2013 10:00:00 to " + str(sec) + " sec"
sec = date_to_sec("12/29/2013 17:12:00")
print "12/29/2013 17:12:00 to " + str(sec) + " sec"
Here is the output:
1380204000 sec to date 09/26/2013 10:00:00
1388355120 sec to date 12/29/2013 17:12:00
09/26/2013 10:00:00 to 1380204000.0 sec
12/29/2013 17:12:00 to 1388355120.0 sec
The difference between two timestamps, 1380204000 and 1388355120, should be 94 days and 8.2 hours, while my results show a difference of 94 days and 7.2 hours.
Any idea what happened?
Your issue is Daylight Saving Time. The time between the timestamps is indeed 94 days, 8.2 hours; but given DST, that means the formatted hour of the later time will be an hour behind where you expect.

Python Time Math

I want to write a program that allows the user to enter in a start time hour, end time hour, and number of divisions.
So they might enter 9, 10, and 4 which should mean a start time of 9:00AM, end of 10:00AM and to split the range 4 times, resulting in an output of 9:00, 9:15, 9:30, 9:45.
I've tried using the time module and datetime, but cannot get the addition of time to work. I do not care about date.
I can calculate the time split, but the actual addition to the start time is evading me.
I have a hodge-podge of code, and the following is mostly me experimenting trying to figure out how to make this work. I've tried adding the minutes, tried converting to seconds, delved into datetime, tried the time module, but can't seem to get it to work. There are plenty of examples of how to "add 15 minutes to now" but the issue is I don't want to start at the "now", but rather let the user decide start time.
Thank you.
time_start = "9"
time_end = "10"
time_split = "4"
if len(time_start) == 1:
time_start = "0" + str(time_start) + ":00"
else:
time_start = str(time_start) + ":00"
if len(time_end) == 1:
time_end = "0" + str(time_end) + ":00"
else:
time_end = str(time_end) + ":00"
print time_start
print time_end
s1 = time_start + ':00'
s2 = time_end + ':00'
FMT = '%H:%M:%S'
tdelta = datetime.strptime(s2, FMT) - datetime.strptime(s1, FMT)
divided = tdelta / int(time_split)
print tdelta
print divided
s3 = str(divided)
print "s1 time start: " + str(s1)
print "s2 time end: " + str(s2)
print "s3 time divided: " + str(s3)
ftr = [3600,60,1]
add_seconds = sum([a*b for a,b in zip(ftr, map(int,s3.split(':')))])
print "s3 time divided seconds: " + str(add_seconds)
print "time delta: " + str(tdelta)
EDIT: I did a small bit of research and found a much better solution that elegantly handles resolution to the millisecond. Please implement this code instead (though I will save the old code for posterity)
import datetime
start_time = 9 # per user input
end_time = 10 # per user input
divisions = 7 # per user input
total_time = end_time - start_time
start_time = datetime.datetime.combine(datetime.date.today(),datetime.time(start_time))
end_time = start_time + datetime.timedelta(hours=total_time)
increment = total_time*3600000//divisions # resolution in ms
times = [(start_time+datetime.timedelta(milliseconds=increment*i)).time()
for i in range(divisions)]
from pprint import pprint
pprint(list(map(str,times)))
# ['09:00:00',
# '09:08:34.285000',
# '09:17:08.570000',
# '09:25:42.855000',
# '09:34:17.140000',
# '09:42:51.425000',
# '09:51:25.710000']
If I were you, I'd do my math as raw minutes and use datetime.time only to save the results as something more portable.
Try this:
import datetime
start_time = 9 # per user input
end_time = 10 # per user input
divisions = 4 # per user input
total_minutes = (end_time-start_time)*60
increment = total_minutes // divisions
minutes = [start_time*60]
while minutes[-1] < end_time*60:
# < end_time*60 - increment to exclude end_time from result
minutes.append(minutes[-1] + increment)
times = [datetime.time(c//60,c%60) for c in minutes]
# [09:00:00,
# 09:15:00,
# 09:30:00,
# 09:45:00,
# 10:00:00]

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