I go to school by bus.My school bus reaches at seven in the morning and leaves for school at 7.15AM.I reach the school at 8Am and attend the daily morning prayer.
I go to school by bus. My School Bus arrives at the bus halt at seven in the morning and leaves for school at 7.15 AM. I reach the school at 8:00 and attend the daily morning prayers.
* 8:00 = Eight O'clock
Amy has made a very good point.
She has included some missing information.
I was initially confused by your "bus reaches" comment.
She mentions the "bus halt". This is the missing information.
However, I have never heard the term "bus halt".
In Australia we call it a "bus stop".
Even though you now have "somewhere" for the bus to "reach", it is still better to use "arrive"...
When you write numbers, you must be consistant in how you present them. The "time of day" should be written as digits (0-9), with a colon ":" between the hours, minutes (and seconds).
This is how I would say it. "The bus arrives at my stop at 7:00 AM, and departs at 7:15. I reach my school at 8:00 and attend the daily morning prayer".