Task manager with a wide range of functionality (Calendar planning, finance, time tracking)?

Question

Time Management

Hello everyone
I can not decide on a task manager, maybe you can help me.
Required functionality
1) Calendar planning, with the possibility of applying several projects to the calendar.
2) Accounting for the time spent by the developer
3) If the programmer does tasks for a fixed fee, accounting for finances
Is there such a ready-made solution?
Thanks

Answer 1

There are none (((I searched everything, but did not find it. Here is an idea for a business for you;)

Answer 2

What have you already seen and what did not fit?

Answer 3

Try https://www.primaerp.com/ru_ru/

Answer 4

twproject