[tz] Re: Annuaire pour l'an ...., publié par le Bureau de Longitudes as a useful source for historical time zone changes

On 2025-07-20 05:53, Gent, R.H. van (Rob) via tz wrote:

the French Annuaire pour l'an ...., publié par le Bureau de Longitudes, published annually since 1797 and available from the Gallica website, usually contains a detailed section on the legal time in France, French colonies and dependencies and elsewhere.

Thanks for the pointer. Do you happen to know which editions of "Connaissance des temps" cover legal time? That would help us cite it, by letting people know timestamps for which it might be useful. I looked at the latest edition that I could find online, which was for 2002[1], and didn't see anything to do with legal time. Thanks. [1]: https://www.imcce.fr/content/medias/publications/publications-institutionnel...