more expressions

[ziawj2]

I wrote some sentences. could you write any sentences to replace them? Thank you!
1. The evening will start at 19:00 and end at 22:00.
2. Welcome to attend on time!

[Nicky_K]

I'm not a teacher!

1. The planned evening is scheduled to begin at 19:00 and to end at 22:00.
2. Please come on time.

[Barb_D]

"Evening" happens when it happens.
The program/event/concert/party/festivities -- whatever it is you're talking about - will start at 19:00 and end at 22:00
Please come on time. OR: Please arrive in time for the opening ceremonies.

[5jj]

"Evening" happens when it happens.
The program/event/concert/party/festivities -- whatever it is you're talking about - will start at 19:00 and end at 22:00

'Evening' for me can suggest 'evening's event(s)', and so "The evening will start at 19:00 and end at 22:00" is possible, in my opinion.

Whether you go with 'program/event/concert/party/festivities -- whatever it is you're talking about' or 'evening', there is no need to add 'planned' or 'is scheduled'.