Let me show you how to tell time in Hindi in this post. In Hindi, we use 12 hour system which means we use AM and PM.

Time = समय (Samay)
Watch = घड़ी (Ghadi)
O’clock = बजे (Baje)
Hour = घँटा (Ghanta)
Minute = मिनट (Minute)
Day = दिन (Din)
Night = रात (Raat)
Morning = सुबह (Subah)
Afternoon = दोपहर (Dopahar)
Evening = शाम (Shaam)
Past = बजकर (Bajkar)

Before showing you some examples on how to tell time in Hindi, I would suggest you to see the post on the numbers in Hindi at : https://blogs.transparent.com/hindi/hindi-numbers-1-100/

So some of the examples on the time are:

7:00 = सात बजे  (saat baje)
7:00 am = सुबह के सात बजे (subah ke saat baje)
7:00 pm = शाम के सात बजे (shaam ke saat baje)
1:25 = एक बजकर पचीस मिनट (ek bajkar pachis minat)
6:18 = छह बजकर अठारह मिनट (chh bajkar atharah minat)
4:55 = पाँच बजने में पाँच मिनट (panch bajne mein panch minat)
4:55 = चार बजकर पचपन मिनट (char bajkar pachpan minat)
8:20 = आठ बजकर बीस मिनट (aath bajkar bis minat)

2:15 = सवा दो बजे (sava do baje)
7:45 = पौने आठ बजे (paune aath baje)

(Notice that the we add 1 to the hour when we use  पौने (Paune) = “a quarter to” as we do in English)

12:30 pm = दोपहर के साढ़े बारह बजे (daupahar ke sadhe barah hai )
12:45 pm = दोपहर के पौने एक (daupahar ke paune ek)
12 noon = दोपहर के बारह बजे (dopahar ke barah baje)
8:30 p.m. = रात के साढे आठ (raat ke sadhe aath).
5:15 p.m. = शाम के सवा पाँच (shaam ke sava panch)