[DandyDev]

That is fine as long as they don't mention any dates that are only relevant to certain cultures. Christmas and Easter? Remove it.

[grandempire]

Some culture events are more relevant to the local population than others. Localization is the process of selecting those for a region or group. It sounds like you have a sense that the local population has more of an interest in Easter and Christmas.

Besides that I think googles change may be more about removing “holi-months” in favor of “holidays”.

[PopePompus]

I agree that removing these commemorative month names is a good idea. Anyone who cares about them knows when they start. But holiday dates like Christmas which are federal holidays are worth putting on the calendar, because many businesses and government offices are closed on those days.

[matthewmorgan]

Except those are actual holidays, where schools and shops close. See the difference?