Weekday Widget
Learn to calculate the weekday of any given date in seconds!
The Definitive way to learn the 'Calendar Trick'
Weekday Widget's many features include:
Comprehensive tutorial based on an optimal, yet beginner friendly method
‘Guided Solves’ to walk users step-by-step through the process for a random date
Training minigames for practicing each individual step of the solving process
Speedrun modes to help train speed and consistency
Text-to-speech features for learning audio-only performance
Fully customizable date range from 1600-2100
Sleek user interface with unlockable themes
…and more! Available for free on web browsers and as a PWA for offline mobile use.