Template:Daynum/doc

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The {{daynum}} date and time function template changes a full weekday name, a standard three letter weekday abbreviation or a weekday number from 0 to 6, with or without a leading zero, to the weekday number from 0 to 6.

Usage

{{daynum|a full weekday name, a standard three letter weekday abbreviation or a weekday number from 0 to 6, with or without a leading zero}}

or

{{daynum}} which defaults to local weekday number of OEIS Wiki server

Examples

Examples with valid input

Code	Result
{{daynum|monday}}	1
{{daynum|Monday}}	1
{{daynum|WEDNESDAY}}	3
{{daynum|tue}}	2
{{daynum|0}}	0
{{daynum|4}}	4
{{daynum|06}}	6
{{daynum|001}}	1
{{daynum}}	6

Examples with invalid input

Code	Result
{{daynum|Hexday}}
{{daynum|7}}
{{daynum|-1}}
{{daynum|6.5}}

Code

<!-- The third column will have its use! For the third column, the leading zeros are ignored. -->

{{#switch: {{lc: {{{1|{{LOCALDAYNAME}}}}} }}
  | sunday=0    | sun=0 | 0=0
  | monday=1    | mon=1 | 1=1
  | tuesday=2   | tue=2 | 2=2
  | wednesday=3 | wed=3 | 3=3
  | thursday=4  | thu=4 | 4=4
  | friday=5    | fri=5 | 5=5
  | saturday=6  | sat=6 | 6=6
  | {{error| Daynum error: invalid input}}
}}

See also

• {{daynum}} gives the weekday number (0 to 6) for (Sun to Sat)
• {{day}} gives the standard three letter weekday abbreviation.
• {{fullday}} gives the full weekday name.

• {{monthnum}} gives the month number (padded left with 0 if necessary to get two decimal digits) (01 to 12)
• {{month}} gives the standard three letter month abbreviation.
• {{fullmonth}} gives the full month name.
• {{days in month}} (or {{monthdays}}) gives the number of days in a month (for any year from 1 AD to 10000 AD)

• {{yearday}} returns the day of year from year, month and monthday (for any year from 1 AD to 10000 AD)
• {{ifleapyear}} or {{if leap year}} returns different values depending on whether a given year is a leap year or a common year (for any year from 1 AD to 10000 AD)
• {{is leap year}} predicate function template returns 1 (if true) or 0 (if false) depending on whether a given year is a leap year or a common year (for any year from 1 AD to 10000 AD)
• {{Century}} returns the century for any nonzero (negative or positive) year
• {{Millennium}} returns the millennium for any nonzero (negative or positive) year

• {{to day of CE}} returns the day of CE (Christ Era) from year, month and monthday (for any year from 1 AD to 10000 AD)
• {{from day of CE}} returns year, month and monthday (for any year from 1 AD to 10000 AD) from the day of CE (Christ Era)

• {{date}} for date mathematics (for any year from 1 AD to 10000 AD) (returns the date offset a specified number of days from a given date)
• {{days between}} for date mathematics (for any years from 1 AD to 10000 AD) (returns the number of days between two dates)