Availability Planner
Paste all the codes you have received below (one per line) and click "Calculate". Codes are saved automatically. Hover over a cell for detail per group or person, including who cannot make it.
Want to pick a date with your own group? Fill in below what it is about and which dates are candidates, then click "Download my version". You get a new, ready-to-use file you can send round straight away, no technical work involved. This page itself stays as it is.
Prefer to work in the code yourself? That works too: open the file in a text editor and adjust the CONFIG block at the top of the script.