We have grouped a small set of 10 Japanese words that are suffixes for time related words like minutes, hours, days, weeks etc…
This is an easy milestone to cross. Since you already know the numbers, a number followed by these suffixes will produce respective counters
List of JLPT N5 words that indicates counting of period/time
|日||〜にち||~nichi||…st, ..nd, ..th|
|か月||〜かげつ||~kagetsu||~ number of months|
For all these counters, the usage is simple.
A number followed by the counter is the simplest usage
For example: 2 o clock = 2 ji = ni ji
Only exception is the usage of "han"
which is used to denote "half" hour, i.e 30 min
For example: 2:30 should be said as 2 ji han
Now you have completed learning them. Congrats. This is a "small success" and a step ahead to completing all JLPT Level N5 Vocabulary.