Linux provides commands that allow you to view system’s date information, and with these commands, you can quickly get the date related information.

System Date

We can use the date command to get or set the date of the system: 

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date
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Prints datetime

Locale Datetime

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date +'%c'
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Prints locale's datetime

Locale Date

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date +'%x'
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Prints locale's time

Locale Weekday - Abbreviation 

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date +'%a'
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Prints locale's abbreviated weekday name

Locale Weekday - Full Name 

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date +'%A'
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Prints locale's full weekday name

Locale Month - Abbreviation 

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date +'%b'    # This is equivalent to date +'%h'
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Prints locale's abbreviated month name

Locale Month - Full Name

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date +'%B'
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Prints locale's full month name

Date - YYYY-MM-DD (ISO 8601 format) 

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date +'%F'
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Prints date in YYYY-MM-DD format

Date - DD/MM/YY

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date +'%D'
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Prints date in DD/MM/YY format

Century

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date +'%C'
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Prints century

Year - YYYY

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date +'%Y'
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Prints year in YYYY format

Year - YY

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date +'%y'
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Prints year in YY format

Month - MM

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date +'%m'
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Prints month in MM format

Week of Year - 00 to 53 (First Day Monday) 

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date +'%W'
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Prints Monday first week number

Week of Year - 00 to 53 (First Day Sunday) 

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date +'%U'
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Prints Sunday first week number

ISO Week Number Year - YY

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date +'%g'
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Prints week number year in YY format

ISO Week Number Year - YYYY 

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date +'%G'
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Prints week number year in YYYY format

Day of Week - Zero to Six

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date +'%w'    # 0 corresponding to Sunday
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Prints day of week zero to six

Day of Week - One to Seven 

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date +'%u'    # 1 corresponding to Monday
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Prints day of week one to seven

Day of Month

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date +'%d'
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Prints day of month

Day of Month - Space Padded 

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date +'%e'
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Prints space padded day of month

Day of Year

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date +'%j'
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Prints day of year

Day or Days Ago

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date --date='1 day ago'
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Prints a day ago

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date --date='2 days ago'
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Prints two days ago

Day or Days Hence

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date --date='1 day'
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Prints a day hence

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date --date='2 days'
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Prints two days hence

Month or Months Ago

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date --date='1 month ago'
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Prints a month ago

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date --date='2 months ago'
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Prints two months ago

Month or Months Hence

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date --date='1 month'
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Prints a month hence

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date --date='2 months'
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Prints two months hence

Year or Years Ago

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date --date='1 year ago'
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Prints a year ago

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date --date='2 years ago'
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Prints two years ago

Year or Years Hence

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date --date='1 year'
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Prints a year hence

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date --date='2 years'
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Prints two years hence

References 21 System context, 21.1.2 Date conversion specifiers, 21.1.7 Examples of date

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