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Halloween: dates, traditions and planning
When is Halloween 2026?
Halloween 2026 falls on Saturday, 31 October, in ISO week 44. A Saturday date makes evening parties and trick-or-treating easier to plan, because there is no school or work the next morning for most people.
Clock changes sit close to the date in 2026. British Summer Time ends on Sunday, 25 October, the weekend before Halloween. In the USA and Canada, clocks go back one hour on Sunday, 1 November, the morning after Halloween, so Saturday night gains an extra hour.
What day is Halloween in 2027?
Halloween 2027 falls on Sunday, 31 October. Halloween remains on 31 October whether it lands on a school night, a weekend or a working day. A community can choose an earlier evening for an organised event, but that event schedule does not change the date of Halloween.
Knowing the weekday makes it easier to plan costumes, a party or a family outing. Check local event listings for starting times, age restrictions and any neighbourhood arrangements. There is no single worldwide trick-or-treating timetable, and this calendar does not prescribe one.
Why is Halloween celebrated on 31 October?
Halloween is the evening before All Saints’ Day, 1 November; its name comes from All Hallows’ Eve. Its history also involves the Celtic festival of Samhain and later Christian and secular traditions. Modern customs are a mixture of influences rather than one unchanged ancient festival.
Costumes, carved pumpkins, trick-or-treating and themed gatherings are especially familiar in North America and are also found elsewhere. How widely they are celebrated varies by country and community. Halloween is not a general public holiday in the USA, UK, Canada, Australia or India, so normal school and business schedules usually still matter.
Halloween, daylight saving and evening plans
Late October is close to the end of daylight saving time in several countries. In the UK, the last Sunday in October is the clock-change date under the current rule; in 2027 that Sunday is also Halloween. North American clock changes follow a different schedule, so do not assume London and New York keep the same time difference throughout the season.
If you are planning an outdoor activity, check local sunset times for the selected city and date. Darkness arrives at different times depending on latitude and time zone. A Halloween countdown targets the start of 31 October, not sunset or a neighbourhood’s trick-or-treat start time.
Explore the 2027 United Kingdom calendar with week numbers for holidays and clock changes. For exact intervals use the date calculator, compare cities in the meeting planner, or set a different event time in the custom countdown. The sunrise and sunset tool helps with outdoor plans.
