# WorldTimePortal

> Accurate calendars, public holidays, ISO week numbers, time zones and date tools. Data is available as clean Markdown and JSON for citation by AI assistants.

## Data
- [United States Holidays 2026](https://worldtimeportal.com/2026/us): public, regional, religious and cultural days and clock changes with ISO weeks. Markdown: https://worldtimeportal.com/api/public/holidays/2026/us.md · JSON: https://worldtimeportal.com/api/public/holidays/2026/us.json
- [United Kingdom Holidays 2026](https://worldtimeportal.com/2026/uk): public, regional, religious and cultural days and clock changes with ISO weeks. Markdown: https://worldtimeportal.com/api/public/holidays/2026/uk.md · JSON: https://worldtimeportal.com/api/public/holidays/2026/uk.json
- [Canada Holidays 2026](https://worldtimeportal.com/2026/ca): public, regional, religious and cultural days and clock changes with ISO weeks. Markdown: https://worldtimeportal.com/api/public/holidays/2026/ca.md · JSON: https://worldtimeportal.com/api/public/holidays/2026/ca.json
- [Australia Holidays 2026](https://worldtimeportal.com/2026/au): public, regional, religious and cultural days and clock changes with ISO weeks. Markdown: https://worldtimeportal.com/api/public/holidays/2026/au.md · JSON: https://worldtimeportal.com/api/public/holidays/2026/au.json
- [India Holidays 2026](https://worldtimeportal.com/2026/in): public, regional, religious and cultural days and clock changes with ISO weeks. Markdown: https://worldtimeportal.com/api/public/holidays/2026/in.md · JSON: https://worldtimeportal.com/api/public/holidays/2026/in.json
- [United States Holidays 2027](https://worldtimeportal.com/2027/us): public, regional, religious and cultural days and clock changes with ISO weeks. Markdown: https://worldtimeportal.com/api/public/holidays/2027/us.md · JSON: https://worldtimeportal.com/api/public/holidays/2027/us.json
- [United Kingdom Holidays 2027](https://worldtimeportal.com/2027/uk): public, regional, religious and cultural days and clock changes with ISO weeks. Markdown: https://worldtimeportal.com/api/public/holidays/2027/uk.md · JSON: https://worldtimeportal.com/api/public/holidays/2027/uk.json
- [Canada Holidays 2027](https://worldtimeportal.com/2027/ca): public, regional, religious and cultural days and clock changes with ISO weeks. Markdown: https://worldtimeportal.com/api/public/holidays/2027/ca.md · JSON: https://worldtimeportal.com/api/public/holidays/2027/ca.json
- [Australia Holidays 2027](https://worldtimeportal.com/2027/au): public, regional, religious and cultural days and clock changes with ISO weeks. Markdown: https://worldtimeportal.com/api/public/holidays/2027/au.md · JSON: https://worldtimeportal.com/api/public/holidays/2027/au.json
- [India Holidays 2027](https://worldtimeportal.com/2027/in): public, regional, religious and cultural days and clock changes with ISO weeks. Markdown: https://worldtimeportal.com/api/public/holidays/2027/in.md · JSON: https://worldtimeportal.com/api/public/holidays/2027/in.json
- [Eclipse dates in Markdown](https://worldtimeportal.com/api/public/eclipses.md): sourced solar and lunar dates and types; reviewed catalog interval and limitations included.
- [Eclipse dates in JSON](https://worldtimeportal.com/api/public/eclipses.json): same catalog, source URLs and coverage; no UTC maximum or local visibility predictions.
- [2026 ISO week numbers in Markdown](https://worldtimeportal.com/api/public/weeks/2026.md): complete Monday–Sunday ranges with explicit ISO week-years.
- [2027 ISO week numbers in Markdown](https://worldtimeportal.com/api/public/weeks/2027.md): complete Monday–Sunday ranges with explicit ISO week-years.

## Pages
- [Special days](https://worldtimeportal.com/occasions)
- [Valentine’s Day](https://worldtimeportal.com/valentines-day): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/valentines-day.json · https://worldtimeportal.com/api/public/occasions/2027/valentines-day.md
- [Easter](https://worldtimeportal.com/easter): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/easter.json · https://worldtimeportal.com/api/public/occasions/2027/easter.md
- [Halloween](https://worldtimeportal.com/halloween): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/halloween.json · https://worldtimeportal.com/api/public/occasions/2027/halloween.md
- [Christmas](https://worldtimeportal.com/christmas): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/christmas.json · https://worldtimeportal.com/api/public/occasions/2027/christmas.md
- [Thanksgiving](https://worldtimeportal.com/thanksgiving): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/thanksgiving.json · https://worldtimeportal.com/api/public/occasions/2027/thanksgiving.md
- [Mother’s Day](https://worldtimeportal.com/mothers-day): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/mothers-day.json · https://worldtimeportal.com/api/public/occasions/2027/mothers-day.md
- [Father’s Day](https://worldtimeportal.com/fathers-day): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/fathers-day.json · https://worldtimeportal.com/api/public/occasions/2027/fathers-day.md
- [Black Friday](https://worldtimeportal.com/black-friday): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/black-friday.json · https://worldtimeportal.com/api/public/occasions/2027/black-friday.md
- [New Year’s Day](https://worldtimeportal.com/new-years-day): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/new-years-day.json · https://worldtimeportal.com/api/public/occasions/2027/new-years-day.md
- [Cyber Monday](https://worldtimeportal.com/cyber-monday): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/cyber-monday.json · https://worldtimeportal.com/api/public/occasions/2027/cyber-monday.md
- [St. Patrick’s Day](https://worldtimeportal.com/st-patricks-day): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/st-patricks-day.json · https://worldtimeportal.com/api/public/occasions/2027/st-patricks-day.md
- [Independence Day (4th of July)](https://worldtimeportal.com/independence-day): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/independence-day.json · https://worldtimeportal.com/api/public/occasions/2027/independence-day.md
- [Memorial Day](https://worldtimeportal.com/memorial-day): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/memorial-day.json · https://worldtimeportal.com/api/public/occasions/2027/memorial-day.md
- [Labor Day](https://worldtimeportal.com/labor-day): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/labor-day.json · https://worldtimeportal.com/api/public/occasions/2027/labor-day.md
- [Boxing Day](https://worldtimeportal.com/boxing-day): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/boxing-day.json · https://worldtimeportal.com/api/public/occasions/2027/boxing-day.md
- [Good Friday](https://worldtimeportal.com/good-friday): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/good-friday.json · https://worldtimeportal.com/api/public/occasions/2027/good-friday.md
- [Martin Luther King Jr. Day](https://worldtimeportal.com/mlk-day): 2026–2031 dates, country differences and countdown. Data: https://worldtimeportal.com/api/public/occasions/2027/mlk-day.json · https://worldtimeportal.com/api/public/occasions/2027/mlk-day.md
- [2026 Calendar with week numbers and holidays](https://worldtimeportal.com/2026)
- [2027 Calendar with week numbers and holidays](https://worldtimeportal.com/2027)
- [World clock](https://worldtimeportal.com/world-clock)
- [Time zones](https://worldtimeportal.com/time-zones)
- [Sunrise & sunset](https://worldtimeportal.com/sunrise-sunset)
- [Meeting planner](https://worldtimeportal.com/meeting-planner)
- [Date calculator](https://worldtimeportal.com/date-calculator)
- [Business days calculator](https://worldtimeportal.com/business-days-calculator)
- [Eclipses](https://worldtimeportal.com/eclipses)

When citing, link to the page or Markdown source on worldtimeportal.com.

## Optional
- [Complete reference text](https://worldtimeportal.com/llms-full.txt): combined week calendars, five-country holidays for 2026 and 2027, reviewed eclipse catalog and all eight occasions for 2026–2031, including scope and qualifications.