Space

Start / pause. Clicking the clock does the same.

R

Reset to the set time

F

Fullscreen. Double-click the screen also works.

T

Light / dark

S

Next colour scheme

A

Next digit animation

B

Next background

K

Next character skin

Torch

Lights a Shadowdark torch: 60 minutes, burning down, reading DARKNESS when it goes out. Lantern (60:00) and candle (10:00) are in Setup, or use #torch=1, #lantern=1, #candle=1 in the address.

M

Mute / unmute

C

CRT scanlines

O

Overtime count-up

U

Count up instead of down

Up / Down

Add or drop a minute, works mid-run

Shift + Right / Left

Add or drop 10 seconds. Shift is on purpose: a presentation clicker sends plain Right and Left, and those do nothing here so a stray click can never shorten your exercise.

1 - 9

1, 2, 3, 5, 10, 15, 20, 30, 45 minutes. The dock also has 25.

0

60 minutes

L

Jump to the label box

G

Open or close setup

? or H

This card

Esc

Close this card or the setup panel, or leave fullscreen

Bookmark a timer: add something like #t=5:00&label=BREAK&scheme=synthwave&auto=1 to the file address. With auto=1 it is armed and starts on your first space or click on the clock. Copy link in Setup writes the whole thing for you. Settings stick on this machine. Nothing leaves it, and it works with the wifi off.

The map behind the clock is Arvindh's own art. Shadowdark mode loads the Pirata One typeface from Google Fonts and the torch flame is "Fire animation" by Alex Sapozhkov on LottieFiles (Lottie Simple License), played with the lottie-web player from cdnjs; with no wifi it falls back to a plain serif and a CSS flame.