Holiday Countdown Widget

How it works

Choose one of 17 presets or a custom date. Fixed dates are simple: Christmas 25 December, New Year 1 January, Valentine's Day 14 February, Halloween 31 October, US Independence Day 4 July, Bonfire Night 5 November, Australia Day 26 January. Moving dates are computed: Western Easter Sunday with the Meeus/Jones/Butcher Gregorian computus (28 March 2027, 16 April 2028); US Thanksgiving as the fourth Thursday of November under 5 U.S.C. 6103 (26 November 2026), Black Friday the day after and Cyber Monday four days after; US Mother's Day the second Sunday of May (36 U.S.C. 117) and Father's Day the third Sunday of June (36 U.S.C. 109); UK Mothering Sunday three weeks before Easter (7 March 2027); Australian Father's Day the first Sunday of September. Chinese New Year follows the Hong Kong Observatory's lunar conversion tables for 2026-2040. The countdown runs to midnight at the start of the day in each visitor's own zone, or in one IANA zone you set; on the day itself it shows "It's ... today!" and the next morning moves on to next year.

Method

• Easter (Meeus/Jones/Butcher): a = Y mod 19, b = Y div 100, c = Y mod 100, d = b div 4, e = b mod 4, f = (b + 8) div 25, g = (b - f + 1) div 3, h = (19a + b - d - g + 15) mod 30, i = c div 4, k = c mod 4, l = (32 + 2e + 2i - h - k) mod 7, m = (a + 11h + 22l) div 451; month = (h + l - 7m + 114) div 31; day = (h + l - 7m + 114) mod 31 + 1
• n-th weekday of a month: day = 1 + (weekday - weekday of the 1st + 7) mod 7 + 7(n - 1)
• Black Friday = Thanksgiving + 1 day; Cyber Monday = Thanksgiving + 4 days; Mothering Sunday = Easter Sunday - 21 days
• Next occurrence = this year's date if it is today or later, else next year's; time left = local midnight of that date - now

Worked examples

Limitations

• Western (Gregorian) Easter only; Orthodox Easter, Diwali, Eid and other lunar or lunisolar dates are not computed (see the Ramadan Countdown for Ramadan).
• Chinese New Year is limited to the dated table, 2026-2040.
• It counts to the calendar date, not to substitute bank-holiday Mondays when a holiday falls at a weekend.
• A visitor with a wrong device clock sees a wrong time left.

Where publishers use it

• A gift shop's home page counting down to Christmas Day, with the full date in the visitor's language
• A US retailer's deals page counting to Black Friday and, from the Saturday, to Cyber Monday
• A florist running Mothering Sunday in the UK and Mother's Day in the US and Australia from the same site
• A school newsletter page counting to the Easter holidays' Easter Sunday
• A Chinese restaurant's site counting to Chinese New Year for its banquet menu

Questions

Sources

1. 5 U.S. Code 6103 - Holidays - Legal Information Institute, Cornell Law School . Lists New Year's Day (1 January), Independence Day (4 July), Thanksgiving Day (the fourth Thursday in November) and Christmas Day (25 December) as legal public holidays. Checked 2026-10-01.
2. 36 U.S. Code 117 - Mother's Day - Legal Information Institute, Cornell Law School . "The second Sunday in May is Mother's Day." Checked 2026-10-01.
3. 36 U.S. Code 109 - Father's Day - Legal Information Institute, Cornell Law School . "The third Sunday in June is Father's Day." Checked 2026-10-01.
4. The Date of Easter - US Naval Observatory . States the ecclesiastical rule (first Sunday after the ecclesiastical full moon on or after 21 March; Easter between 22 March and 25 April) and publishes an integer algorithm. Checked 2026-10-01.
5. UK bank holidays - GOV.UK . Easter Monday 29 March 2027 and 17 April 2028, used to cross-check the Easter Sunday calculation; Christmas Day and Boxing Day. Checked 2026-10-01.
6. Public holidays - NSW Government . Australia Day on 26 January (Monday 26 January 2026, Tuesday 26 January 2027). Checked 2026-10-01.
7. Gregorian-Lunar Calendar Conversion Table - Hong Kong Observatory . Yearly tables giving the first day of the 1st lunar month, used for Chinese New Year 2026-2040. Checked 2026-10-01; extend the table before 2040.

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A2Z Tools Holiday Countdown
https://a2z.tools/embed/holiday-countdown

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[A2Z Tools Holiday Countdown](https://a2z.tools/embed/holiday-countdown)

Holiday Countdown by A2Z Tools - https://a2z.tools/embed/holiday-countdown