Format datetime Strings In Python with .strftime()
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Use ``strftime(FORMAT)`` to format a Python datetime as a string. Scroll past this first code block to see examples. The set of available tokens for formatting new strings is further below
-- python
from datetime import datetime
dt = datetime(2022, 3, 7, 16, 2,9)
dt_string = dt.strftime('%Y-%m-%d')
print(dt_string)
-- results/
2022-03-07
-- /results
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** Examples
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Skip the code. It's used to generate the actual examples in the output.
-- python
from datetime import datetime
formats = [
'%Y-%m-%d',
'%b. %-d, %Y',
'%B %-d, %Y',
'%c',
]
dt = datetime(2022, 3, 7, 16, 2,9)
for format in formats:
print("#\n")
print(f"dt.strftime('{format}')\n")
print(f"#> {dt.strftime(format)}\n")
-- results/
#
dt.strftime('%Y-%m-%d')
#> 2022-03-07
#
dt.strftime('%b. %-d, %Y')
#> Mar. 7, 2022
#
dt.strftime('%B %-d, %Y')
#> March 7, 2022
#
dt.strftime('%c')
#> Mon Mar 7 16:02:09 2022
-- /results
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** Pre-built String Tokens
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| Description | Code | Example |
|-------------+------+--------------------------|
| Datetime | %c | Mon Sep 30 07:06:05 2013 |
| Date | %x | 09/30/13 |
| Time | %X | 07:06:05 |
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** Date Tokens
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| Description | Code | Example |
|----------------------------+------+-----------|
| Weekday name | %A | Monday |
| Weekday abbreviation | %a | Mon |
| Year - Four digits | %Y | 2013 |
| Year - Two digits (padded) | %y | 13 |
| Month name | %B | September |
| Month abbreviation | %b | Sep |
| Month number | %-m | 9 |
| Month number (padded) | %m | 09 |
| Day of the month | %-d | 7 |
| Day of the month (padded) | %d | 07 |
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** Date Meta Tokens
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| Description | Code | Example |
|----------------------------+------+-----------|
| Day of the year (padded) | %j | 273 |
| Day of the year | %-j | 273 |
| Week of year (padded) | %U | 39 |
| Week of year | %W | 39 |
| Weekday index (Sunday is 0) | %w | 1 |
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** Time Tokens
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| Description | Code | Example |
|-----------------------+------+---------|
| 24hr hour | %-H | 7 |
| 24hr hour (padded) | %H | 07 |
| 12hr hour | %-I | 7 |
| 12hr hour (padded) | %I | 07 |
| Minutes | %-M | 6 |
| Minutes (padded) | %M | 06 |
| Seconds | %-S | 5 |
| Seconds (padded) | %S | 05 |
| Microseconds (padded) | %f | 000000 |
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** Time Meta Tokens
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| Description | Code | Example |
|-------------+------+---------|
| AM or PM | %p | AM |
| UTC offset | %z | |
| Time zone | %Z | |
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** Escape Token
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| Description | Code | Example |
|-------------------------+------+---------|
| A literal '%' character | %% | % |
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| Code | Example | Description |
|------+--------------------------+--------------------------------|
| %a | Mon | Weekday abbreviation |
| %A | Monday | Weekday full name |
| %w | 1 | Weekday index (Sunday is 0) |
| %d | 07 | Day of the month (padded) |
| %-d | 7 | Day of the month |
| %b | Sep | Month abbreviation |
| %B | September | Month full name |
| %m | 09 | Month number (padded) |
| %-m | 9 | Month number |
| %y | 13 | Two digit year (padded) |
| %Y | 2013 | Four digit year |
| %H | 07 | 24hr clock hour (padded) |
| %-H | 7 | 24hr clock hour |
| %I | 07 | 12hr clock hour (padded) |
| %-I | 7 | 12hr clock hour |
| %p | AM | AM or PM |
| %M | 06 | Minutes (padded) |
| %-M | 6 | Minutes |
| %S | 05 | Seconds (padded) |
| %-S | 5 | Seconds |
| %f | 000000 | Microsecond (padded) |
| %z | | UTC offset |
| %Z | | Time zone |
| %j | 273 | Day of the year (padded) |
| %-j | 273 | Day of the year |
| %U | 39 | Week of year (padded) |
| %W | 39 | Week of year |
| %c | Mon Sep 30 07:06:05 2013 | Datetime string representation |
| %x | 09/30/13 | Date string representation |
| %X | 07:06:05 | Time string representation |
| %% | % | A literal '%' character |
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Note that all the names and abbreviations are in the current locale
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- The numbers using ``%-`` to remove zero padding don't work on all platforms.
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- AM/PM is locale dependent
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- TODO: Put in note about what naive references are
- TODO: Clean up these notes
- ``%z`` - UTC offset is in the form +HHMM or -HHMM (empty string if the the object is naive)
- ``%Z`` - Time zone (empty if object is naive)
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- ``%U`` - 39 - Week number of the year (Sunday as the first day of the week) as a zero padded All days in a new year preceding the first Sunday are considered to be in week 0|
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- ``%W`` - 39 - Week number of the year (Monday as the first day of the week) as a All days in a new year preceding the first Monday are considered to be in week 0
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- ``%c`` - Mon Sep 30 07:06:05 2013 - Locale’s appropriate date and time representation
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- ``%x`` - 09/30/13 Locale’s appropriate date representation
- `%X `- 07:06:05 Locale’s appropriate time representation
-- python
lines="""
| %a | Mon | Weekday abbreviation |
| %A | Monday | Weekday full name |
| %w | 1 | Weekday index (Sunday is 0) |
| %d | 07 | Day of the month (padded) |
| %-d | 7 | Day of the month |
| %b | Sep | Month abbreviation |
| %B | September | Month full name |
| %m | 09 | Month number (padded) |
| %-m | 9 | Month number |
| %y | 13 | Two digit year (padded) |
| %Y | 2013 | Four digit year |
| %H | 07 | 24hr hour (padded) |
| %-H | 7 | 24hr hour |
| %I | 07 | 12hr hour (padded) |
| %-I | 7 | 12hr hour |
| %p | AM | AM or PM |
| %M | 06 | Minutes (padded) |
| %-M | 6 | Minutes |
| %S | 05 | Seconds (padded) |
| %-S | 5 | Seconds |
| %f | 000000 | Microseconds (padded) |
| %z | | UTC offset |
| %Z | | Time zone |
| %j | 273 | Day of the year (padded) |
| %-j | 273 | Day of the year |
| %U | 39 | Week of year (padded) |
| %W | 39 | Week of year |
| %c | Mon Sep 30 07:06:05 2013 | Datetime string representation |
| %x | 09/30/13 | Date string representation |
| %X | 07:06:05 | Time string representation |
| %% | % | A literal '%' character |
"""
for line in lines.split("\n"):
parts = line.split("|")
if len(parts) > 1:
print(f"|{parts[3]}|{parts[1]}|{parts[2].replace('.','')}|")Output:
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