Template:Weekday in month/sandbox

This is the template sandbox page for Template:Weekday in month (diff).

Template documentation[view] [edit] [history] [purge]

Usage[edit]

Code

Note that the order of the input can be reversed. The following give the same output.

{{Weekday in month|y|m|w|n}}

{{Weekday in month|n|w|m|y}}

Note that the year is optional. The following give the nth w-day of month m this year.

{{Weekday in month||m|w|n}}

{{Weekday in month|n|w|m}}

Parameters

y	year	numeric format, certain words, blank Integers from 1000 to 9999 are accepted. `last year` and `next year` are accepted. The year is optional (defaults to the current year).
m	month	numeric format, spelt out in full or abbreviated For numeric input a leading zero is optional. Three-letter abbreviations are accepted (e.g. `Jan`, `Feb`, etc.)
w	weekday	numeric format, spelt out in full or abbreviated Three-letter abbreviations are accepted (e.g. `Sun`, `Mon`, etc.) The weekday numbering follows ISO practice (Sunday → 0, Monday → 1, ... Saturday → 6).
n	count	numeric format, spelt out in full or abbreviated Positive integers give the nth Sunday/Monday ... Saturday of the month. Negative integers give the nth last Sunday/Monday ... Saturday of the month. Words are accepted (e.g. `first`, `last`, etc.) Abbreviations are accepted (e.g. `1st`, `2nd`, etc.)

Examples

for the first Sunday of January 2000
- n = first, 1st or 1
- w = Sunday, Sun or 0
- m = January, Jan or 1
- y = 2000
for the first Monday of February 2006
- n = first, 1st or 1
- w = Monday, Mon or 1
- m = February, Feb or 2
- y = 2006
for the first Tuesday of March 2010
- n = first, 1st or 1
- w = Tuesday, Tue or 2
- m = March, Mar or 3
- y = 2010
for the second Tuesday of April 2012
- n = second, 2nd or 2
- w = Tuesday, Tue or 2
- m = April, Apr or 4
- y = 2012

for the second Tuesday of May 2020
- n = second, 2nd or 2
- w = Tuesday, Tue or 2
- m = May or 5
- y = 2020
for the second Wednesday of June 2100
- n = second, 2nd or 2
- w = Wednesday, Wed or 3
- m = June, Jun or 6
- y = 2100
for the third Wednesday of July this year
- n = third, 3rd or 3
- w = Wednesday, Wed or 3
- m = July, Jul or 7
- y = {{#time:Y}}, {{CURRENTYEAR}} or leave it blank
for the third Thursday of August this year
- n = third, 3rd or 3
- w = Thursday, Thu or 4
- m = August, Aug or 8
- y = {{#time:Y}}, {{CURRENTYEAR}} or leave it blank

for the last Thursday of September last year
- n = last or -1
- w = Thursday, Thu or 4
- m = September, Sep or 9
- y = {{#time:Y|last year}}, {{LASTYEAR}} or last year
for the last Friday of October last year
- n = last or -1
- w = Friday, Fri or 5
- m = October, Oct or 10
- y = {{#time:Y|last year}}, {{LASTYEAR}} or last year
for the second last Friday of November next year
- n = second last, 2nd last or -2
- w = Friday, Fri or 5
- m = November, Nov or 11
- y = {{#time:Y|next year}}, {{NEXTYEAR}} or next year
for the second last Saturday of December next year
- n = second last, 2nd last or -2
- w = Saturday, Sat or 6
- m = December, Dec or 12
- y = {{#time:Y|next year}}, {{NEXTYEAR}} or next year

Calculation[edit]

The template then gives j, the day of the month, as calculated by the following formulae.

j = 7×n − 6 + (w − w₁) mod 7 (for positive n)

j = t + 7×(n + 1) − (w_t − w) mod 7 (for negative n)

Where t is the last day of the month, w_t is the ISO weekday number of the last day of the month, w₁ is the ISO weekday number of the first day of the month and n and w are as defined above.

Examples[edit]

year	MLK Jr Day (US)	Presidents Day (US)	Memorial Day (US)	Labor Day (US)	Columbus Day (US)	Father's Day (Australia)	Mother's Day (many countries)	Thanksgiving (Norfolk Island)	Melbourne Cup Day (Australia)
year	3rd Monday in January	3rd Monday in February	Last Monday in May	1st Monday in September	2nd Monday in October	1st Sunday in September	2nd Sunday in May	last Wednesday of November	first Tuesday in November
2019	21 January	18 February	27 May	2 September	14 October	6 September	12 May	27 November	5 November
2019	`{{weekday in month \|2019\|1\|1\|3}}`	`{{weekday in month \|3\|1\|2\|2019}}`	`{{weekday in month \|2019\|5\|1\|-1}}`	`{{weekday in month \|first\|Monday \|September\|2019}}`	`{{weekday in month \|2nd\|Mon\|Oct\|2019}}`	`{{weekday in month \|1st\|sun\|oct\|2019}}`	`{{weekday in month \|2\|sun\|may\|2019}}`	`{{weekday in month \|last\|Wed\|Nov\|2019}}`	`{{weekday in month \|1st\|Tue\|Nov\|2019}}`
2020	20 January	17 February	25 May	7 September	12 October	4 September	10 May	25 November	3 November
2020	`{{weekday in month \|2020\|1\|1\|3}}`	`{{weekday in month \|3\|1\|2\|2020}}`	`{{weekday in month \|2020\|5\|1\|-1}}`	`{{weekday in month \|first\|Monday \|September\|2020}}`	`{{weekday in month \|2nd\|Mon\|Oct\|2020}}`	`{{weekday in month \|1st\|sun\|oct\|2020}}`	`{{weekday in month \|2\|sun\|may\|2020}}`	`{{weekday in month \|last\|Wed\|Nov\|2020}}`	`{{weekday in month \|1st\|Tue\|Nov\|2020}}`
2021	18 January	15 February	31 May	6 September	11 October	3 September	9 May	24 November	2 November
2021	`{{weekday in month \|2021\|1\|1\|3}}`	`{{weekday in month \|3\|1\|2\|2021}}`	`{{weekday in month \|2021\|5\|1\|-1}}`	`{{weekday in month \|first\|Monday \|September\|2021}}`	`{{weekday in month \|2nd\|Mon\|Oct\|2021}}`	`{{weekday in month \|1st\|sun\|oct\|2021}}`	`{{weekday in month \|2\|sun\|may\|2021}}`	`{{weekday in month \|last\|Wed\|Nov\|2021}}`	`{{weekday in month \|1st\|Tue\|Nov\|2021}}`
2022	17 January	21 February	30 May	5 September	10 October	2 September	8 May	30 November	1 November
2022	`{{weekday in month \|2022\|1\|1\|3}}`	`{{weekday in month \|3\|1\|2\|2022}}`	`{{weekday in month \|2022\|5\|1\|-1}}`	`{{weekday in month \|first\|Monday \|September\|2022}}`	`{{weekday in month \|2nd\|Mon\|Oct\|2022}}`	`{{weekday in month \|1st\|sun\|oct\|2022}}`	`{{weekday in month \|2\|sun\|may\|2022}}`	`{{weekday in month \|last\|Wed\|Nov\|2022}}`	`{{weekday in month \|1st\|Tue\|Nov\|2022}}`
2023 (last year)	16 January	20 February	29 May	4 September	9 October	1 September	14 May	29 November	7 November
2023 (last year)	`{{weekday in month \|2023\|1\|1\|3}}`	`{{weekday in month \|3\|1\|2\|2023}}`	`{{weekday in month \|2023\|5\|1\|-1}}`	`{{weekday in month \|first\|Monday \|September\|2023}}`	`{{weekday in month \|2nd\|Mon\|Oct\|2023}}`	`{{weekday in month \|1st\|sun\|oct\|2023}}`	`{{weekday in month \|2\|sun\|may\|2023}}`	`{{weekday in month \|last\|Wed\|Nov\|2023}}`	`{{weekday in month \|1st\|Tue\|Nov\|last year}}`
2024 (this year)	15 January	19 February	27 May	2 September	14 October	6 September	12 May	27 November	5 November
2024 (this year)	`{{weekday in month \|2024\|1\|1\|3}}`	`{{weekday in month \|3\|1\|2\|2024}}`	`{{weekday in month \|2024\|5\|1\|-1}}`	`{{weekday in month \|first\|Monday \|September\|2024}}`	`{{weekday in month \|2nd\|Mon\|Oct\|2024}}`	`{{weekday in month \|1st\|sun\|oct\|2024}}`	`{{weekday in month \|2\|sun\|may\|2024}}`	`{{weekday in month \|last\|Wed\|Nov\|2024}}`	`{{weekday in month \|1st\|Tue\|Nov}}`
2025 (next year)	20 January	17 February	26 May	1 September	13 October	5 September	11 May	26 November	4 November
2025 (next year)	`{{weekday in month \|2025\|1\|1\|3}}`	`{{weekday in month \|3\|1\|2\|2025}}`	`{{weekday in month \|2025\|5\|1\|-1}}`	`{{weekday in month \|first\|Monday \|September\|2025}}`	`{{weekday in month \|2nd\|Mon\|Oct\|2025}}`	`{{weekday in month \|1st\|sun\|oct\|2025}}`	`{{weekday in month \|2\|sun\|may\|2025}}`	`{{weekday in month \|last\|Wed\|Nov\|2025}}`	`{{weekday in month \|1st\|Tue\|Nov\|next year}}`

Usage[edit]

Calculation[edit]

Examples[edit]

See also[edit]