Identification of parts of speech

Question

Hello,

In regards to the sentence: Ils quittent leur travail à 19h, is the following identification of different articles of speech correct:

(subject)Ils (verb)quittent (indirect object pronoun)leur (direct object)travail (preposition)à (??)19h

I am not sure what article of speech does "19h" come under?

Accepted Answer

Hi Rahul,
Just one correction 'leur' is a possessive adjective here ( their ).
See the following relevant Kwiziq lesson 
https://french.kwiziq.com/revision/grammar/use-notre-nos-votre-vos-leur-leurs-to-say-our-your-and-their-possessive-adjectives
and 'à 19 heures'
answers the question
at what time or when?
which is a 'complément circonstanciel de temps' 
Could be 'le soir' le jour suivant' etc
I hope this helps!