Moon Phases Don't Show Waning

closed
· Calendars ·
By BattIeBear on 03/22/2026
· Assigned to katerinach
· Acknowledged

Calenders with moons don't correctly show the waning phases, rather just reusing the waxing phases. You can see how the light part of the symbol moves from right to left, but the shadow then moves in revers; left to right. This means that there is never a time when the left side of the moon is illuminated unless the right is also illuminated! For example, the half-moon before and after a new moon look identical, when they should actually be opposites!
The problem:


How waning SHOULD look:

Steps to Reproduce

Create a calendar, add a moon with phases long enough to show a waning phase (29.53 is a good approximation of earth's moon).

Note that I use Microsoft Edge, but I have also tested it on Google Chrome and gotten identical results.

Operating System

Windows

Browser

Microsoft Edge

Related Entity

All calendars that have a moon, including the Feature Guide to Calendars:

Note that tis is a seperate issue from Moon Popup is Wrong, though that also gives me issues.

History

BattIeBear @ 22 Mar, 2026 08:27:01

Ugh, of course the images uploaded backwards.

mikolaszko @ 24 Mar, 2026 02:10:32 Developer
mikolaszko Added tag Acknowledged
katerinach @ 07 Jul, 2026 03:16:06 Assignee
Assigned katerinach
katerinach @ 09 Jul, 2026 11:54:36 Assignee

Hey, thanks for reporting! We are currently working on the next version of Calendar which will resolve this issue, please keep an eye out for an update soon.

katerinach @ 09 Jul, 2026 11:54:45 Assignee
set this bug to closed