To see your time entries from the whole week in one place, you can switch to week view in Time > My Time > Layout > Week View.
Your projects and their respective services are listed on the left, while the time entries recorded on those services are on the right.
Click on Add Project to add a project and a service to track time to:
In the header of each day, you'll see the sum of time entries for that day, and the total for the week:
To add a time entry, click on the the project and the day you want to record the entry:
Notice the popover that has appeared; you can assign that time entry to a task or add a note.
To edit a time entry, just click on it:
If you click on the Expand...
....you can add another time entry to the previously recorded one:
Turn on the suggestions (Pinned, Scheduled and Recent) to see your projects in various categories. Click on one of the suggestions to turn it on.
Pinned: Show you projects that you have pinned to the view, meaning that this project will show up on Week view all the time. To pin a project, Click on Pinned first and then hover next to the project name to pin it.
Scheduled: This view will show you all the project you were Scheduled to:
Recent: This view will show you all the project you've tracked time last week:
Note that you can turn the suggestions on and off in any order you like - just click on the ones you want to have active.