Seconds between datetime python

Time Difference in Seconds Between Datetimes in Python

To get the difference between two times in seconds using Python, we can use the total_seconds() function after subtracting two dates.

import datetime datetime1 = datetime.datetime(2022,3,5,0,0,0) datetime2 = datetime.datetime(2022,3,7,0,0,0) difference_d2_d1 = datetime2 - datetime1 print(difference_d2_d1.total_seconds()) #Output: 172800.0

When working in Python, many times we need to create variables which represent dates and times. When creating and displaying values related to times, sometimes we need to display the difference between times in seconds, minutes or hours.

We can easily show the time difference in seconds between date times.

To get the difference between two date times, you can subtract two times just like we would subtract two numbers.

After subtracting two times, we get a datetime.timedelta object. timedelta objects have many great functions, and to get the difference of two times in seconds, we can use the total_seconds() function.

Below is a simple example of how to get the time difference between two times in Python.

import datetime datetime1 = datetime.datetime(2022,3,5,0,0,0) datetime2 = datetime.datetime(2022,3,7,0,0,0) difference_d2_d1 = datetime2 - datetime1 print(difference_d2_d1.total_seconds()) #Output: 172800.0

Time Difference in Minutes and Hours Using Python

We can take the example above and easily find the time difference between two times and convert it to minutes or hours.

To find the difference in two times in minutes, we can divide the call to total_seconds() by 60.

Below is an example in Python of how to find the difference between two times in minutes.

import datetime datetime1 = datetime.datetime(2022,3,5,0,0,0) datetime2 = datetime.datetime(2022,3,7,0,0,0) difference_d2_d1 = datetime2 - datetime1 print(difference_d2_d1.total_seconds()/60) #Output: 2880.0

If you instead want to find the difference between two times in hours, you can divide the call to total_seconds() by 3600.

Below is an example in Python of how to find the difference between two times in hours.

import datetime datetime1 = datetime.datetime(2022,3,5,0,0,0) datetime2 = datetime.datetime(2022,3,7,0,0,0) difference_d2_d1 = datetime2 - datetime1 print(difference_d2_d1.total_seconds()/3600) #Output: 48.0

Hopefully this article has been useful for you to use Python to find the time difference in seconds between two datetime objects.

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Python: Get difference between two datetimes in seconds

Now to get the difference between two timestamps in python, we will use the datetime module. First we will create start and end datetime objects from the string timestamps. Then we will subtract the datetime objects to get the duration in the datetime.timedelta object. Then using the properties of timedelta object, we will fetch the seconds in between the two timestamps. Let’s understand with some examples,

Python Example 1: Get difference between two timestamps in seconds

Convert the timestamps in string format to datetime objects. Then subtract them and get the timedelta object. Then use the total_seconds() function of timedelta object to get the complete duration between two timestamps in seconds. For example,

from datetime import datetime date_1 = '24/7/2021 11:13:08' date_2 = '24/7/2021 11:14:18' date_format_str = '%d/%m/%Y %H:%M:%S' start = datetime.strptime(date_1, date_format_str) end = datetime.strptime(date_2, date_format_str) # Get the interval between two datetimes as timedelta object diff = end - start print('Difference between two datetimes in seconds:') print(diff.total_seconds())

Difference between two datetimes in seconds: 70.0

How did it work ?

Frequently Asked:

We created the two datetime objects from the two timestamps in the string format, by passing the date and it’s format in the strptime() function. Then we subtracted these two datetime objects and got the datetime.timedelta object, which represents the duration between two dates. The timedelta class has a member function total_seconds(), which represents the complete duration in seconds (including the fractional part till milliseconds). We used that fetch the difference between two timestamp in seconds.

Python Example 2: Get difference between two dates in seconds

Let’s checkout an another example, where both the timestamps are more than 1 day apart,

from datetime import datetime date_1 = '24/7/2021 11:13:08' date_2 = '25/7/2021 11:14:18' date_format_str = '%d/%m/%Y %H:%M:%S' start = datetime.strptime(date_1, date_format_str) end = datetime.strptime(date_2, date_format_str) # Get the interval between two datetimes as timedelta object diff = end - start print('Difference between two datetimes in seconds:') print(diff.total_seconds())

Difference between two datetimes in seconds: 86470.0

The different between ’25/7/2021 11:14:18′ and ’24/7/2021 11:13:08′ is 86470.0 seconds.

If you are not interested in fractional part of seconds, then you can use this also,

print(diff.days * 24 * 60 * 60 + diff.seconds)

Here, timedelta.days represents the difference between two timestamp in days and timedelta.seconds represents the seconds that we need to add into the timedelta.days to get the complete difference. Whereas, timedelta.total_seconds() gives the complete interval between two timestamp in seconds.

Python Example 3: Get difference between two timestamps in seconds

Let’s checkout an another example, where both the timestamps are more than 2 years apart,

from datetime import datetime date_1 = '2/7/2021 21:55:12' date_2 = '24/9/2023 11:13:08' date_format_str = '%d/%m/%Y %H:%M:%S' start = datetime.strptime(date_1, date_format_str) end = datetime.strptime(date_2, date_format_str) # Get the interval between two datetimes as timedelta object diff = end - start print('Difference between two datetimes in seconds:') print(diff.total_seconds())

Difference between two datetimes in seconds: 70291076.0

The different between ’24/9/2023 11:13:08′ and ‘2/7/2021 21:55:12’ is 70291076.0 seconds.

Python Example 4: Get difference between two datetimes in seconds

If we have complete datetime objects instead of only timestamp strings, in that case lets see how to calculate the difference between two datetimes in seconds,

from datetime import datetime date_1 = datetime(2021, 7, 2, 21, 55, 12) date_2 = datetime(2021, 7, 24, 11, 13, 8) # Get the interval between two datetimes as timedelta object diff = date_2 - date_1 print('Difference between two datetimes in seconds:') print(diff.total_seconds())

Difference between two datetimes in seconds: 1862276.0

Python Example 5: Get difference between two datetimes in seconds using pandas

Suppose we have two timestamps in string format. We can convert them to datetime object using pandas.to_datetime() function. Then we will subtract the datetime objects to get the duration in the datetime.timedelta object. Then using the properties of timedelta object, we will fetch the total seconds in between the two timestamps. For example,

import pandas as pd from datetime import datetime date_1 = '2/7/2021 21:55:12' date_2 = '24/9/2023 11:13:08' date_format_str = '%d/%m/%Y %H:%M:%S' start = pd.to_datetime(date_1, format=date_format_str) end = pd.to_datetime(date_2, format=date_format_str) # Get the interval between two datetimes as timedelta object diff = end - start print('Difference between two datetimes in seconds:') print(diff.total_seconds())

Difference between two datetimes in seconds: 70291076.0

We learned that, in python how to get the difference between two datetimes in seconds.

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