Ask/answer about date/duration around NOW

[Dalimero90]

The fact: He is singing here from Day01 to Day15.​

How to ask and answer ? :
Please correct me (for the best way to learn...)

About the past date Day01:
Since when is he singing here?
He is singing here since Day01.

About the past duration:
How long has he been singing here?
He has been singing here for 10 days.

About the future duration:
How much longer will he sing here?
He will sing here for 5 days more. (ok?)

About the future date Day15:
Until when is he singing here?
He is singing here until Day15.

About the TOTAL duration:
How much total time is he singing here? (Good? Even for a long duration ?)
He is singing here for a total of 15 days. ??
OR He is singing here for 15 total days. ??

Thank you !

 

[Piscean]

We ask you to post one question at a time. If you post too many, people are reluctant to respond - as you saw here: https://www.usingenglish.com/forum/...rs-about-time-and-duration-around-now.298562/

 

[jutfrank]

Your question about Day 1 should be in the past simple, as I told you in your other thread.

When did he start singing here?

Everything else is okay.

 

[Tarheel]

When is he scheduled to perform? How long will the tour last?

Q: When is he scheduled to perform?
A: It's the tenth day of a ten-day tour.