Thanksgiving Turkey Timeline: Thaw, Roast, RestPlan Thanksgiving turkey from refrigerator thawing to roasting, resting and leftovers, with weight charts and a worked dinner schedule.
BC, Alberta and Manitoba Stop Changing Clocks: What It MeansBC, Alberta and Manitoba kept their summer clocks on November 1. New year-round UTC offsets, winter gaps to the US and Toronto, and why labels disagree.
How to Count Business Days (and Add Them to a Date)Count business days between two dates or add them to a date: the weekday rule, holidays and observed days, other countries' weekends, and the Excel formulas.
The Pomodoro Technique: How to Do It RightThe Pomodoro Technique as its creator wrote it: 25-minute rounds, 3 to 5 minute breaks, the indivisible rule, interruptions, and what studies show.
Tabata vs HIIT vs EMOM: Which Format Fits?Compare Tabata, HIIT and EMOM timing, see worked sessions, and choose an interval format for your experience and goals.
How to Calculate Overtime Pay Under the FLSACalculate overtime under the FLSA with examples for hourly pay, bonuses and different rates. Learn which hours count and when state rules add more.
Leap Year Rules: How Leap Years Work and Why 2100 Will Not Be OneThe full leap year rule in three lines, a test for any year, the leap years from 2028 to 2096, February 29 birthdays and why 2100 skips its leap day.
Winter Solstice: Why It Is the Shortest Day of the YearThe December solstice is the shortest day north of the equator. In 2026 it falls at 20:50 UTC on December 21. Day lengths by city and why mornings stay dark.
New Year Around the World: Which Places Celebrate First and LastKiribati’s Line Islands see New Year first, at 10:00 UTC on December 31, and American Samoa last. The full order by time zone, with times for major cities.
US Time Zones: Map, States and the States Split Between Two ZonesThe US has nine standard time zones in law, six in the 50 states. Offsets, the 14 states split between two zones, and who skips daylight saving time.
Time Zone Abbreviations: A Full List and the Ones That ClashEST, CET, IST, AEST and 40 more time zone abbreviations with their UTC offsets, grouped by region, plus the ones that mean two or three different zones.
UTC vs GMT: What Is the Difference?UTC and GMT show the same time on a clock, but one is a time standard and the other a time zone. When the difference matters and which one to write.
Guides & Articles
Practical guides with worked examples: training intervals, work hours, time zones and dates. Every article links to the free tool that does the math for you.