NumPy: DateTime Exercises, Practice, Solution
NumPy DateTime [7 exercises with solution]
[An editor is available at the bottom of the page to write and execute the scripts.]
1. Write a NumPy program to display all the dates for the month of March, 2017. Go to the editor
Expected Output:
March, 2017
['2017-03-01' '2017-03-02' '2017-03-03' '2017-03-04' '2017-03-05'
'2017-03-06' '2017-03-07' '2017-03-08' '2017-03-09' '2017-03-10'
'2017-03-11' '2017-03-12' '2017-03-13' '2017-03-14' '2017-03-15'
'2017-03-16' '2017-03-17' '2017-03-18' '2017-03-19' '2017-03-20'
'2017-03-21' '2017-03-22' '2017-03-23' '2017-03-24' '2017-03-25'
'2017-03-26' '2017-03-27' '2017-03-28' '2017-03-29' '2017-03-30'
'2017-03-31']
Click me to see the sample solution
2. Write a NumPy program to get the dates of yesterday, today and tomorrow. Go to the editor
Sample Output:
Yestraday: 2017-03-24
Today: 2017-03-25
Tomorrow: 2017-03-26
Click me to see the sample solution
3. Write a NumPy program to count the number of days of specific month. Go to the editor
Expected Output:
Number of days, February, 2016:
29 days
Number of days, February, 2017:
28 days
Number of days, February, 2018:
28 days
Click me to see the sample solution
4. Write a NumPy program to create 24 python datetime.datetime objects (single object for every hour), and then put it in a numpy array. Go to the editor
Expected Output:
[datetime.datetime(2000, 1, 1, 0, 0) datetime.datetime(2000, 1, 1, 1, 0)
datetime.datetime(2000, 1, 1, 2, 0) datetime.datetime(2000, 1, 1, 3, 0)
datetime.datetime(2000, 1, 1, 4, 0) datetime.datetime(2000, 1, 1, 5, 0)
datetime.datetime(2000, 1, 1, 6, 0) datetime.datetime(2000, 1, 1, 7, 0)
datetime.datetime(2000, 1, 1, 8, 0) datetime.datetime(2000, 1, 1, 9, 0)
datetime.datetime(2000, 1, 1, 10, 0) datetime.datetime(2000, 1, 1, 11, 0)
datetime.datetime(2000, 1, 1, 12, 0) datetime.datetime(2000, 1, 1, 13, 0)
datetime.datetime(2000, 1, 1, 14, 0) datetime.datetime(2000, 1, 1, 15, 0)
datetime.datetime(2000, 1, 1, 16, 0) datetime.datetime(2000, 1, 1, 17, 0)
datetime.datetime(2000, 1, 1, 18, 0) datetime.datetime(2000, 1, 1, 19, 0)
datetime.datetime(2000, 1, 1, 20, 0) datetime.datetime(2000, 1, 1, 21, 0)
datetime.datetime(2000, 1, 1, 22, 0) datetime.datetime(2000, 1, 1, 23, 0)]
Click me to see the sample solution
5. Write a NumPy program to find the first Monday in May 2017. Go to the editor
Expected Output:
First Monday in May 2017:
2017-05-01
Click me to see the sample solution
6. Write a NumPy program to find the number of weekdays in March 2017. Go to the editor
Note: "busday" default of Monday through Friday being valid days.
Sample Output:
Number of weekdays in March 2017:
23
Click me to see the sample solution
7. Write a NumPy program to convert numpy datetime64 to Timestamp. Go to the editor
Sample output:
Current date:
2017-04-01 08:01:12.722055
Timestamp:
1491033672.72
UTC from Timestamp:
2017-04-01 08:01:12.722055
Click me to see the sample solution
Python-Numpy Code Editor:
More to Come !
Do not submit any solution of the above exercises at here, if you want to contribute go to the appropriate exercise page.
Python: Tips of the Day
Returns a list of elements that exist in both lists, after applying the provided function to each list element of both.
Example:
def tips_intersection_by(a, b, fn): _b = set(map(fn, b)) return [item for item in a if fn(item) in _b] from math import floor print(tips_intersection_by([2.1, 1.2], [2.3, 3.4],floor))
Output:
[2.1]
- Weekly Trends
- Java Basic Programming Exercises
- SQL Subqueries
- Adventureworks Database Exercises
- C# Sharp Basic Exercises
- SQL COUNT() with distinct
- JavaScript String Exercises
- JavaScript HTML Form Validation
- Java Collection Exercises
- SQL COUNT() function
- SQL Inner Join
- JavaScript functions Exercises
- Python Tutorial
- Python Array Exercises
- SQL Cross Join
- C# Sharp Array Exercises