Guides on TimerPlan

Decimal Hours on a Timesheet

Tue, 11 Aug 2026 00:00:00 +0000

The table worth keeping

Minutes	Decimal	Minutes	Decimal	Minutes	Decimal
5	0.08	25	0.42	45	0.75
6	0.10	30	0.50	48	0.80
10	0.17	35	0.58	50	0.83
12	0.20	36	0.60	55	0.92
15	0.25	40	0.67	60	1.00
20	0.33	42	0.70

Two rows are worth noticing. Six minutes is exactly 0.1 hours, which is why US payroll so often rounds to six-minute blocks — the decimal stays clean. And 20 minutes is 0.33, not 0.20, which is the single most common wrong entry after the half hour.

Lighting a Video Call With Your Screen

Tue, 11 Aug 2026 00:00:00 +0000

Which white

Room	Panel	Why
Household bulbs, evening	Warm 3200 K	Otherwise your face reads blue against the wall
Daylight, or LED panels	Daylight 5500 K	What most webcams are balanced for
Other monitors in shot	Cool 6500 K	Matches the white point of the screens beside it
Very dark room	Pure white, dimmed	Maximum light, then pull it back until it is comfortable

Start at daylight if you are not sure. It is wrong in fewer rooms than either extreme.

Scheduling Across Time Zones

Tue, 11 Aug 2026 00:00:00 +0000

The weeks to watch

Change	Northern spring	Northern autumn
United States	Second Sunday in March	First Sunday in November
European Union and UK	Last Sunday in March	Last Sunday in October
Australia (southern)	First Sunday in April, back	First Sunday in October, forward
Countries with no change	—	Japan, India, China, most of Africa, Arizona

The mismatch in March is the expensive one: for about three weeks the US is an hour closer to Europe than everybody’s memory says, and a recurring call set months earlier lands an hour out for one side.

Work-to-Rest Ratios

Tue, 11 Aug 2026 00:00:00 +0000

The ratios, and what each one is for

Ratio	Example	Trains	Feels like
1:3	15 on, 45 off	Speed and power	Short, sharp, plenty of standing
1:2	20 on, 40 off	Speed endurance	Hard efforts, real recovery
1:1	30 on, 30 off	Aerobic and anaerobic together	The classic conditioning session
2:1	40 on, 20 off	Conditioning, muscular endurance	Relentless
3:1	45 on, 15 off	Muscular endurance	A class circuit
2:1 maximal	20 on, 10 off	Both, if truly maximal	Four minutes that feel much longer

The last row is the odd one: the same 2:1 ratio as 40/20 but with efforts short enough to be genuinely maximal, which is what makes Tabata different from a fast circuit.