An timestamp is an offset value between a point in time line and the epoch, it's nothing to do with timezone. When it's converted to a human readable string like '%Y-%m-%d %H:%M:%S' that doesn't include any timezone information, python assumes that you want to use local timezone setting.datetime.timestamp() on a naive datetime object calls mktime() internally i.e., the input is interpreted as the local time. Local time definitions may differ between systems.C mktime() may return a wrong result if the local timezone had different utc offset in the past and a historical timezone database is not used.On Unix, when we ... Read More

The ISO 8601 standard defines an internationally recognized format for representing dates and times. ISO 8601 is a date and time format which helps to remove different forms of the day, date, and time conventions across the world. To tackle this uncertainty of various formats ISO sets a format to represent dates "YYYY-MM-DD". For example, May 31, 2022, is represented as 2022-05-31. In this article, we will discuss how to get an ISO 8601 date in string format in python. Using the .isoformat() method The .isoformat() method returns a string of date and time values of a python datetime.date object ... Read More

In this article, we will discuss the various way to convert the python datetime string to milliseconds in python. Using time.time() method The time module in python provides various methods and functions related to time. Here we use the time.time() method to get the current CPU time in seconds. The time is calculated since the epoch which returns a floating-point number expressed in seconds. This value is multiplied by 1000 and rounded off with the round() function. NOTE: Epoch is the starting point of time and is platform-dependent. The epoch is January 1, 1970, 00:00:00 (UTC) on Windows and most ... Read More

The datetime in Javascript and in Python have 2 major differences. First one being the meaning of the month argument.The month in Javascript is expected between 0-11 while in Python it is expected to be between 1-12. So the following tuple actually represents 2 different dates in Python and in Javascript −(2017, 11, 1) Python: 1st November 2017 Javascript: 1sd December 2017The second difference is that they have different default timezones, with Python defaulting to UTC while JavaScript defaults to the user's "local" timezone. You can use Date.UTC(), which returns the timestamp, for the equivalent in JavaScript. For example,var utc = Date.UTC(2013, 7, 10);

If not explicitly stated, the date time functions/modules in Python assume everything in Local time zone.time.mktime() assumes that the passed tuple is in local time, calendar.timegm() assumes it's in GMT/UTC.Depending on the interpretation the tuple represents a different time, so the functions return different values (seconds since the epoch are UTC based).The difference between the values should be equal to the time zone offset of your local time zone.exampleimport calendar import time from datetime import datetime dt = datetime(2017, 12, 31) print(time.mktime(dt.timetuple())) print(calendar.timegm(dt.timetuple()))OutputThis will give the output −1514658600.0 1514678400Read More

You can use the datetime module to convert a datetime to a UTC timestamp in Python. If you already have the datetime object in UTC, you can the timestamp() to get a UTC timestamp. This function returns the time since epoch for that datetime object. If you have the datetime object in local timezone, first replace the timezone info and then fetch the time. examplefrom datetime import timezone dt = datetime(2015, 10, 19) timestamp = dt.replace(tzinfo=timezone.utc).timestamp() print(timestamp)OutputThis will give the output −1445212800.0If you're on Python 2, then you can use the total_seconds() function to get the total seconds since epoch. And ... Read More

In this article, we will show you how to convert a timestamp string to DateTime object in Python. Below are the various methods to accomplish this task − Using datetime.fromtimestamp() function Using datetime.fromtimestamp() & strftime Using datetime.strptime() Convert timestamp to a date time object with format codes with mixed text Using datetime.fromtimestamp() function To obtain a date from a UNIX timestamp, use the datetime module's fromtimestamp() function. This function accepts a timestamp as input and returns the datetime object corresponding to that timestamp. Syntax fromtimestamp(timestamp, tz=None) Algorithm (Steps) Following are the Algorithm/steps to be followed to perform ... Read More

To measure time elapsed during program's execution, either use time.clock() or time.time() functions. The python docs state that this function should be used for benchmarking purposes. exampleimport time t0= time.clock() print("Hello") t1 = time.clock() - t0 print("Time elapsed: ", t1) # CPU seconds elapsed (floating point)OutputThis will give the output −Time elapsed:  1.2999999999999123e-05You can also use the time module to get proper statistical analysis of a code snippet's execution time.  It runs the snippet multiple times and then it tells you how long the shortest run took. You can use it as follows:Exampledef f(x):   return x * x ... Read More

% can either take a variable or a tuple. So you'd have to be very explicit about what you want it to do. For example, if you try formatting such that −Examplemy_tuple = (1, 2, 3) "My tuple: %s" % my_tuple You'd expect it to give the output: My tuple: (1, 2, 3)OutputBut it will throw a TypeError. To guarantee that it always prints, you'd need to provide it as a single argument tuple as follows −"hi there %s" % (name, )   # supply the single argument as a single-item tupleRemembering such caveats every time is not that easy ... Read More

To measure time of a program's execution, either use time.clock() or time.time() functions. The python docs state that this function should be used for benchmarking purposes. exampleimport time t0= time.clock() print("Hello") t1 = time.clock() - t0 print("Time elapsed: ", t1 - t0) # CPU seconds elapsed (floating point)OutputThis will give the output −Time elapsed:  0.0009403145040156798You can also use the timeit module to get proper statistical analysis of a code snippet's execution time.  It runs the snippet multiple times and then it tells you how long the shortest run took. You can use it as follows:Exampledef f(x):   return x * x ... Read More