Christmas Day 2026 falls on Friday, 25 December 2026. That part is fixed. What catches people out is everything stacked in front of it: posting deadlines, last delivery dates, the final payday, the we…
Twice a year, the offset between two cities can quietly change – and not always on the same calendar date in each place. A meeting scheduled with a fixed time-zone gap can drift by an hour for a few w…
A countdown to a wedding or an exam works because it happens once – you set it, watch it run down, and it’s done. Rent due on the 1st doesn’t work that way. Neither does a quarterly filing or a passpo…
Ask a calendar what week number it is and, depending on the system it’s using, you can get two genuinely different answers for the same date. That’s not a bug – there are multiple legitimate week-numb…
Turning 18 doesn’t unlock everything at once, and it doesn’t happen at 18 everywhere anyway. Voting, drinking, driving, marrying, and signing a contract are each governed by their own separate legal t…
UTC vs GMT, explained in plain English: what the two standards really mean and why UTC never shifts for daylight saving time. Includes Zulu time and GMT+5.
Learn how to count 90 days from a date: whether day one counts, calendar vs business days, notice periods, and the Schengen 90/180 rule, with examples.
How long should a Pomodoro be? Compare 25/5, 50/10, the 52/17 rule, and 90-minute blocks, with a table and a worked plan to pick the right timer length.
10,000 days old is 27 years and about 4.5 months. See the exact math, a milestone table from 1,000 days to 1 billion seconds, and how to find your date.
Schedule across time zones without the classic errors: work through UTC, always name the zone, and watch for daylight saving. A worked three-city example.
