Notes
Datetime Module
In python ,to do operations on dates and times , we use the datetime module.
Getting Current Datetime
import datetime
time_stamp=datetime.datetime.now()
#time_stamp format: 2021-03-16 23:49:13.544541
Getting Current Date
from datetime import time
date=datetime.date()
#date format: 2019-10-25
Getting Current Time
from datetime import datetime
time=datetime.now().time()
# time format: 23:57:40.799113
Datetime Format Codes
| Directive | Description | Output Format |
|---|---|---|
| %a | Weekday, short version | Wed |
| %A | Weekday, full version | Wednesday |
| %w | Weekday as a number 0-6, 0 is Sunday | 3 |
| %d | Day of month 01-31 | 31 |
| %b | Month name, short version | Dec |
| %B | Month name, full version | December |
| %m | Month as a number 01-12 | 12 |
| %y | Year, short version, without century | 18 |
| %Y | Year, full version | 2018 |
| %H | Hour 00-23 | 17 |
| %I | Hour 00-12 | 05 |
| %p | AM/PM | PM |
| %M | Minute 00-59 | 41 |
| %S | Second 00-59 | 08 |
| %f | Microsecond 000000-999999 | 548513 |
| %z | UTC offset | +0100 |
| %Z | Timezone | CST |
| %j | Day number of year 001-366 | 365 |
| %U | Week number of year, Sunday as the first day of week, 00-53 | 52 |
| %W | Week number of year, Monday as the first day of week, 00-53 | 52 |
| %c | Local version of date and time | Mon Dec 31 17:41:00 2018 |
| %x | Local version of date | 12/31/18 |
| %X | Local version of time | 17:41:00 |
| %% | A % character | % |
| %G | ISO 8601 year | 2018 |
| %u | ISO 8601 weekday (1-7) | 1 |
| %V | ISO 8601 weeknumber (01-53) | 01 |
Custom Timestamp
import datetime
# To have time stamp like dd-mm-yyyy
custom_timestamp=datetime.datetime.now().strftime('%d-%m-%Y')
#custom_timestamp format: '17-03-2021'
Getting Difference Between Two Time Stamps
from datetime import datetime
time1=datetime.now().time()
time2=datetime.now().time()
time_diff=time2-time1
#time format: 0:00:09.103108
Getting Future Or Past Timestamp
Syntax of timedelta:
timedelta(days=0, seconds=0, microseconds=0, milliseconds=0, minutes=0, hours=0, weeks=0)
Example:
from datetime import datetime,timedelta
present_timestamp=datetime.now()
time_interval=timedelta(days=360)
after_one_year_timestamp=present_timestamp+time_interval
# present_timestamp=2021-03-17 07:59:44.475851
#after_one_year_timestamp=2022-03-12 07:59:44.475851
Getting Total Seconds In timedelta
from datetime import timedelta
time_delta=timedelta(days=365)
print(time_delta.total_seconds())
