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OT, but you gotta love the time precision of the religious holidays. From the wiki: Easter is determined on the basis of lunisolar cycles. The lunar year cons

OT, but you gotta love the time precision of the religious holidays. From the wiki: Easter is determined on the basis of lunisolar cycles. The lunar year consists of 30-day and 29-day lunar months, generally alternating, with an embolismic month added periodically to bring the lunar cycle into line with the solar cycle. In each solar year (1 January to 31 December inclusive), the lunar month beginning with an ecclesiastical new moon (JP note: Not the astronomical full moon) falling in the 29-day period from 8 March to 5 April inclusive is designated as the paschal lunar month for that year. Easter is the third Sunday in the paschal lunar month, or, in other words, the Sunday after the paschal lunar month's 14th day. The 14th of the paschal lunar month is designated by convention as the Paschal full moon, although the 14th of the lunar month may differ from the date of the astronomical full moon by up to two days.[46] Since the ecclesiastical new moon falls on a date from 8 March to 5 April inclusive, the paschal full moon (the 14th of that lunar month) must fall on a date from 21 March to 18 April inclusive.

DanielBMarkham 14y ago
And this is why I posted this -- I suspect the problem here is a bug in the system: birthdays and regular holidays are easy enough to encode. Easter is way whacked. I didn't want to call Google out on a bug. I'd probably be wrong. Thought it would be easier just to wonder why the inconsistency. As I can see from the "quality" of the comments, that was a mistake. Oh well.
- claudius 14y ago
  > And this is why I posted this -- I suspect the problem here is a bug in the system: birthdays and regular holidays are easy enough to encode. Easter is way whacked. It is relatively easy to compute the exact dates for the next N years (or check Wikipedia). Given that Google has various random doodles for birthdays, anniversaries etc. that do not repeat every year, I don’t think it would be difficult to have N one-off doodles for the next N years.
  - jpdoctor 14y ago
    > It is relatively easy to compute the exact dates for the next N years (or check Wikipedia). And would you display for the Julian calendar or Gregorian calendar, since different christian sects use different definitions of "the equinox"?
    - claudius 14y ago
      Use the Julian calendar in Eastern Europe and the Middle East and the Gregorian in the West? With country-level resolution, it should not be too difficult to choose the appropriate date – if everything else fails, you can likely pin it to the relevant bank holidays in the country.
      - jpdoctor 14y ago
        > Use the Julian calendar in Eastern Europe and the Middle East and the Gregorian in the West? Why would google assign insignificance to those who think the Julian calendar is correct in the West and Gregorian in the East?

DanielBMarkham 14y ago

And this is why I posted this -- I suspect the problem here is a bug in the system: birthdays and regular holidays are easy enough to encode. Easter is way whacked. I didn't want to call Google out on a bug. I'd probably be wrong. Thought it would be easier just to wonder why the inconsistency. As I can see from the "quality" of the comments, that was a mistake. Oh well.

claudius 14y ago
> And this is why I posted this -- I suspect the problem here is a bug in the system: birthdays and regular holidays are easy enough to encode. Easter is way whacked. It is relatively easy to compute the exact dates for the next N years (or check Wikipedia). Given that Google has various random doodles for birthdays, anniversaries etc. that do not repeat every year, I don’t think it would be difficult to have N one-off doodles for the next N years.
- jpdoctor 14y ago
  > It is relatively easy to compute the exact dates for the next N years (or check Wikipedia). And would you display for the Julian calendar or Gregorian calendar, since different christian sects use different definitions of "the equinox"?
  - claudius 14y ago
    Use the Julian calendar in Eastern Europe and the Middle East and the Gregorian in the West? With country-level resolution, it should not be too difficult to choose the appropriate date – if everything else fails, you can likely pin it to the relevant bank holidays in the country.
    - jpdoctor 14y ago
      > Use the Julian calendar in Eastern Europe and the Middle East and the Gregorian in the West? Why would google assign insignificance to those who think the Julian calendar is correct in the West and Gregorian in the East?