Time
ISO Week Numbers Explained: How Week 1 Is Decided
How ISO 8601 week numbers work: why weeks start on Monday, how week 1 is chosen, which years have 53 weeks, how the US system differs, and week 1 for 2025–2030.
·5 min read
Guides
Short, practical explainers on the things our tools are used for: waking up on time, napping without grogginess, working in focused blocks, timing intervals, and making sense of time zones. Each guide links to the tool that puts it into practice.
Health
How to Improve Reaction Time: What Works and What Does Not
Simple vs choice reaction time, what a normal score is, how sleep loss, alcohol and age slow you down, what genuinely helps, and how to test yourself properly.
·5 min read
Work
Timeboxing for Focus: How to Plan a Day in Fixed Blocks
How timeboxing beats a to-do list, why Parkinson's law makes open tasks sprawl, how to size a box, block your calendar and handle overruns, plus a sample day.
·5 min read
Fitness
How Many Calories Does Exercise Burn? The MET Method Explained
Estimate calories burned with the MET formula, a table for 11 activities at 60, 75 and 90 kg, why fitness trackers miss by 20% or more, and what afterburn adds.
·5 min read
Music
How to Practise with a Metronome
How to practise with a metronome: start slow, raise tempo in small steps, subdivide, click on 2 and 4, then drop the click. Plus tempo markings and cadence.
·7 min read
Kitchen
How Long to Steep Tea: Times and Temperatures for Every Type
Steeping times and temperatures for green, white, oolong, black, Turkish and herbal tea, why over-steeping tastes bitter, re-steeping and caffeine by type.
·7 min read
Focus
How to Build a Study Schedule with Spaced Repetition
How the spacing effect, retrieval practice and interleaving beat rereading, with a four-week exam plan, session lengths, break timing and why sleep counts.
·7 min read
Sleep
How to Fall Asleep Fast: What Actually Works
Why sleep won't come, how light and caffeine timing work against you, a wind-down routine, the 4-7-8 and cognitive shuffling methods, and when to see a doctor.
·7 min read
Health
The 20-20-20 Rule: Screen Breaks That Reduce Eye Strain
What the 20-20-20 rule is, why staring at screens causes dry, tired eyes, what the evidence says about short breaks, and how to set up your desk so the rule is easy to follow.
·5 min read
Work
How to Run a Timed Meeting That Ends on Time
A practical method for meetings that finish when they should: timeboxed agendas, a visible clock, warnings that work, and polite ways to stop a discussion that has run over.
·6 min read
Time
Time Zones Explained: UTC, Offsets and Daylight Saving
What UTC is, how offsets like UTC+3 and UTC−5 work, why daylight saving breaks recurring meetings twice a year, and how to convert times without mistakes.
·7 min read
Fitness
Tabata and HIIT Intervals: How to Time Them Properly
The original Tabata protocol, how it differs from generic HIIT, which work-to-rest ratios to use for different goals, and how to structure a session so the timing does the coaching.
·6 min read
Sleep
How Long Should a Power Nap Be?
Why 10–20 minutes is the sweet spot for a daytime nap, what happens at 30, 45 and 90 minutes, the best time of day to nap, and how to wake without grogginess.
·5 min read
Kitchen
How Long to Boil Eggs: Soft, Jammy, Medium and Hard
Exact boiling times for soft, jammy, medium and hard-boiled eggs, why the white and yolk set at different temperatures, and how to adjust for egg size, altitude and cold starts.
·6 min read
Focus
The Pomodoro Technique: A Practical Guide
How the 25-minute Pomodoro method works, why it beats "just focus harder", how to plan a day in pomodoros, and what to do about interruptions.
·6 min read
Sleep
How to Wake Up on Time: What Actually Works
Why you sleep through alarms, how sleep cycles decide whether a wake-up feels brutal or easy, and a practical routine for getting up at the time you set.
·7 min read