révolu après

13:21 Aug 12, 2017 

0-12 months = 1st year completed
12-24 months = 2nd year completed
24-36 months = 3rd year completed
36-48 months = 4th year completed
60-72 months = 5th year completed

Ahem, no ... won't work - intervals are not counted that way!

to have "one FULL year of life / have completed one year" you need to have lived already AT LEAST one year at that point in time.

It's only at the end of its first year of life that a child can be "one year old", so the correct interpretation is:

00-12 months = 1st year of life, less than 1 year "completed", i.e. NONE yet.
12-24 months = 2nd year of life, ONE full year completed => child ONE year old (and few months)
24-36 months = 3rd year of life, 2 full years completed
36-48 months = 4th year of life, 3 full years completed
60-72 months = 5th year of life, 4 full years completed

etc

It's much less "bound to be misinterpreted" if you say "13th birthday" for "already lived (exactly) 13 full years"

14:21 Aug 11, 2017 

Yes, that's right... it's a standard formula in formal (and apparently semi-formal!) texts and here means 'up to the age of 13'. Of course, if you express it like that, then the 'après' needs to be treated differently; I suspect the idea is 'up to the age of 13 (as at 6th December...)'

14:16 Aug 11, 2017 

Shouldn't it be

Children under 13 years of age - instead of "Children under 14 years of age (on 6 December of year N)

13:42 Aug 11, 2017 

I've now looked at the dictionary entry and the Proz glossary and I'm hesitant

Firstly because one winning entry for "l'âge de 5 ans révolus" says

up to their completed 5th year / until their 5th birthday

whilst I think I understand that

0-12 months = 1st year completed
12-24 months = 2nd year completed
24-36 months = 3rd year completed
36-48 months = 4th year completed
60-72 months = 5th year completed

I'm not so convinced that people in the street would equate "completed 5th year" with under 5.

Anyway, taking this answer as correct, I suppose that "Enfants jusqu’à 13 ans révolu" = until their 13 Birthday then and not "under 14" as I thought???

12:55 Aug 11, 2017 

This question of 'revolu' has been discussed at some length before in this forum, the earlier discussion is likely to prove helpful here.

12:48 Aug 11, 2017