https://connect.mozilla.org/t5/discussions/thunderbird-calendar-annually-repeating-date-does-not-show-up-on/m-p/22273#M9268 <P>Hi community,</P><P>some years ago a added some holidays with fixed date, like New Year, to my Thunderbird Ligthning calendar (version 102.6.1 (64-Bit)) as starting and ending at 1.1., repeat frequency 1 year, and no limit.</P><P>This seemed to work fine all the years since, but now I noticed, that at 1.1.2024 no entry shows up. Further checks gave the same effect at 1.1.2018 and 1.1.2029, all of them having a Monday as day of the week.</P><P>Has anyone an idea what may cause this strange behaviour?</P><P>All the best, and a Happy New Year</P><P>Mra</P> Fri, 06 Jan 2023 18:18:00 GMT Mra 2023-01-06T18:18:00Z https://connect.mozilla.org/t5/discussions/thunderbird-calendar-annually-repeating-date-does-not-show-up-on/m-p/22273#M9268 <P>Hi community,</P><P>some years ago a added some holidays with fixed date, like New Year, to my Thunderbird Ligthning calendar (version 102.6.1 (64-Bit)) as starting and ending at 1.1., repeat frequency 1 year, and no limit.</P><P>This seemed to work fine all the years since, but now I noticed, that at 1.1.2024 no entry shows up. Further checks gave the same effect at 1.1.2018 and 1.1.2029, all of them having a Monday as day of the week.</P><P>Has anyone an idea what may cause this strange behaviour?</P><P>All the best, and a Happy New Year</P><P>Mra</P> Fri, 06 Jan 2023 18:18:00 GMT https://connect.mozilla.org/t5/discussions/thunderbird-calendar-annually-repeating-date-does-not-show-up-on/m-p/22273#M9268 Mra 2023-01-06T18:18:00Z