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Guides — how to use clocks, alarms and time zones

Long reads about time: alarms, sleep, time zones, daylight saving and counting days.

1637 guides.

Holidays 4 min read

Christmas trivia

Christmas trivia is a quiz about 25 December, not a second holiday. Christmas Day 2026 is Friday 25 December. Christmas Eve is the evening and day before, Thursday 24 December.

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Holidays 4 min read

Christmas vacation actors

Christmas Vacation actors are the men in National Lampoon's Christmas Vacation (1989), led by Chevy Chase as Clark Griswold. The film is a holiday comedy, not a public holiday.

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Holidays 4 min read

Christmas vacation actress

Christmas Vacation actress names the women in National Lampoon's Christmas Vacation (1989), led by Beverly D'Angelo as Ellen Griswold. They are roles in a holiday film, not a feast.

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Holidays 4 min read

Christmas vacation cast

The Christmas Vacation cast is the company of National Lampoon's Christmas Vacation (1989). Chevy Chase plays Clark Griswold. Beverly D'Angelo plays Ellen. Randy Quaid plays Cousin Eddie.

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Holidays 4 min read

Christmas village

A Christmas village is a winter holiday display: a walk-through of lights, an outdoor German-style market, or a set of miniature lighted buildings on a table. The phrase names a place, a market, or a

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Holidays 4 min read

Christmas wallpaper

Christmas wallpaper is a holiday image you set behind the icons on a phone, tablet, or computer. It is a picture file, not wrapping paper. You can change it when the season ends.

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Holidays 4 min read

Christmas wishes

Christmas wishes are the greetings you send for 25 December: a spoken line, a card, a message. They name the feast. They do not move it.

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Holidays 4 min read

Christmas wishlist

A Christmas wishlist is a list of gifts someone hopes to receive by 25 December. Write names, sizes, and titles. The list is a tool. It is not the feast.

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Holidays 4 min read

Christmas with the kranks

Christmas with the Kranks is a 2004 holiday comedy film from John Grisham’s novel Skipping Christmas. A couple try to skip the season, then the plan collapses into a last-minute Christmas.

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Holidays 4 min read

Christmas wonderland

A Christmas wonderland is a festive setting dressed as a lit, wintry scene — a home display, a shop window, or a ticketed winter park. Wonderland Christmas is the same idea with the words flipped.

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Holidays 4 min read

Christmas word search

A Christmas word search is a grid of letters hiding holiday words. You circle each word from a list — tree, sleigh, holly — until the list is empty.

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Holidays 4 min read

Christmas wordsearch

A Christmas wordsearch is a letter grid with holiday words hidden in rows, columns, and diagonals. You find each word from the list and mark it until the list is done.

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Holidays 4 min read

Christmas wrapping paper

Christmas wrapping paper is decorated paper used to hide a gift until it is opened in the holiday. The paper is the disguise; the present is what sits inside.

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Holidays 4 min read

Christmas wreath

A Christmas wreath is a circle of evergreen or other foliage hung as a winter decoration, most often on a door. An Advent wreath is a related circle with candles, used in the weeks before 25 December.

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Calendar 4 min read

Cigarette day

Cigarette Day is not a reason to present smoking as safe or desirable. If the phrase appears on a calendar, verify its source and purpose; a responsible observance should provide context, acknowledge

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Calendar 4 min read

Cincinnati country day

Cincinnati Country Day is a private school in Indian Hill, Ohio, not a national holiday. Founded in 1926, it is a coeducational college-preparatory day school. 2026 is its centennial year.

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Sleep 4 min read

Circadian

Circadian means about a day. A circadian rhythm is the body’s internal cycle of roughly twenty-four hours, seen most clearly in sleep and wake. It is biology, not a clock face.

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Calendar 4 min read

Circle k fuel day

Circle K Fuel Day is a pump promotion on dates Circle K announces. It is not a civic holiday and has no fixed square on the civil calendar.

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Calendar 4 min read

Citizens all day

Citizens all day is not a public holiday. On a U.S. federal holiday, people may have the date off, while a bank named Citizens typically shuts its lobby and leaves cards, ATMs, and apps running.

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Calendar 4 min read

City year

A City Year is an AmeriCorps service term on a school-year calendar, usually about eleven months from a summer start. It is not a city’s budget year, though both are calendars with a named beginning.

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Time zones 4 min read

Click per second test

A click per second test counts how many clicks arrive in a timed window and divides that count by the seconds. The result is a pace for that window, on that pointer.

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Time zones 4 min read

Click speed test

A click speed test counts how many times you click or tap in a timed window and reports clicks per second. It measures pace in that window, not a game you have not played.

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Hours and minutes 4 min read

Clock

A clock shows the current time of day. The Doomsday Clock is not that kind of clock; it is a warning symbol whose “minutes to midnight” are set on purpose, not by the sun.

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Time zones 4 min read

Cloudflare speed test

A Cloudflare speed test measures how your current connection performs to a nearby Cloudflare edge: download, upload, latency, jitter, and packet loss. It is a snapshot of that path, not a grade of you

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