* 1er juin (This is the most common way to write it, using the ordinal number "1er" for the first day)
* juin 1 (This is less common, but also acceptable)
Both are grammatically correct, but 1er juin is preferred.
* 1er juin (This is the most common way to write it, using the ordinal number "1er" for the first day)
* juin 1 (This is less common, but also acceptable)
Both are grammatically correct, but 1er juin is preferred.