eolas/zk/Dates_in_Python.md
2024-06-15 11:15:03 +01:00

93 lines
2 KiB
Markdown

---
tags:
- python
- time
---
# Dates in Python
Python's built-in `datetime` module provides various classes for manipulating
dates and times. Below are some common use-cases with examples.
### Importing `datetime`
First, you'll need to import the `datetime` module.
```python
import datetime
```
### Getting Current Date and Time
You can get the current date and time using `datetime.datetime.now()`.
```python
current_datetime = datetime.datetime.now()
print("Current datetime:", current_datetime)
```
### Creating Date Objects
To create a date object, you can use `datetime.date`, specifying the year,
month, and day.
```python
some_date = datetime.date(2021, 9, 30)
print("Some date:", some_date)
```
### Creating Time Objects
To create a time object, you can use `datetime.time`, specifying the hour,
minute, second, and optionally microsecond.
```python
some_time = datetime.time(13, 24, 56)
print("Some time:", some_time)
```
### Creating Datetime Objects
To create a datetime object, you can use `datetime.datetime`.
```python
some_datetime = datetime.datetime(2021, 9, 30, 13, 24, 56)
print("Some datetime:", some_datetime)
```
### Extracting Components
You can extract various components from a datetime object like so:
```python
print("Year:", some_datetime.year)
print("Month:", some_datetime.month)
print("Day:", some_datetime.day)
print("Hour:", some_datetime.hour)
print("Minute:", some_datetime.minute)
print("Second:", some_datetime.second)
```
### Formatting Datetime Objects
You can format datetime objects to strings using the `strftime` method.
```python
formatted_datetime = some_datetime.strftime('%Y-%m-%d %H:%M:%S')
print("Formatted datetime:", formatted_datetime)
```
## Examples
### Convert a unix timestamp to readable date
```py
def convert_timestamp(timestamp):
date_object = datetime.datetime.fromtimestamp(timestamp)
formatted_date = date_object.strftime("%d-%m-%Y")
return formatted_date
converted = convert_timestamp(1689023491)
print(converted)
# 10-07-2023
```