Time Guides & Articles
Calendars, countdowns, time zones and the sun — explained with exact dates
How Many Days Until Christmas 2026?
Countdown Guides
The exact number of days until Christmas 2026, with a live countdown, the date and weekday of the next five Christmases, and days left in weeks and months.
How Many Days Until New Year 2027?
Countdown Guides
The exact number of days left until January 1, 2027, with a live countdown, the worldwide midnight order, and how New Year moves across time zones.
Lunar New Year Dates 2026–2040
Calendars & Weeks
Every Lunar New Year date from 2026 to 2040 with weekday and zodiac animal, why the date moves each year, and how the 60-year cycle works.
When Is Easter? Dates for 2026–2040 Explained
Calendars & Weeks
Every Easter Sunday from 2026 to 2040, how the date is computed from the paschal full moon, and why Western and Orthodox Easter often differ.
Ramadan and Eid Dates 2026–2030
Islamic Timekeeping
Expected start dates for Ramadan, Eid al-Fitr and Eid al-Adha through 2030, why Islamic dates shift earlier each year, and how moon sighting decides the exact day.
ISO Week Numbers Explained (With 2026 Examples)
Calendars & Weeks
How ISO 8601 week numbering works: why weeks start on Monday, why some years have 53 weeks, and how it differs from the US system.
Daylight Saving Time 2026 and 2027: When Do the Clocks Change?
Time Zones
The exact spring-forward and fall-back dates for the US, Europe and Australia in 2026 and 2027, plus which countries have scrapped DST.
GMT vs UTC: What's the Difference?
Time Zones
GMT is a time zone, UTC is a time standard — the precise difference, why aviation and computing use UTC, and what Zulu time means.
Military Time: The 24-Hour Clock Explained
Time Zones
How to read and convert military time, the full 24-hour conversion table, why zero-dark-thirty exists, and where the 24-hour clock is standard.
Golden Hour and Blue Hour: A Photographer's Guide
Sun & Seasons
The exact definitions of golden hour and blue hour, when they happen at different latitudes and seasons, and how to find today's times for your city.
How to Find the Qibla Direction from Any City
Islamic Timekeeping
What the Qibla is, why its bearing varies dramatically by location, how to use a compass or phone, and the great-circle routes that surprise travelers.
Leap Years Explained: Why February 29 Exists
Calendars & Weeks
The 365.2422-day problem, the divisible-by-4 rule and its 100/400 exceptions, the next leap years, and other calendars' leap strategies.
Time Zones Explained: Why the World Has 38 of Them
Time Zones
How time zones replaced local solar time, why there are more zones than 24 hours, odd offsets like UTC+5:45, and how DST bends the map twice a year.