Help translating a simple sentence for class
 

The English sentence "I got up at about ten thirty on Saturday"
now without omiting the subject or anything how would you translate this?
I want to write...
watashi wa doyoubi ni juu ji han goro (ni) okimashita...but I'm not sure at all

so more importantly...how do you incorporate time and the day of the week into a sentence? do you just use the particle "ni" for both ...or what?

(if you can type in Japanese text please do...it's all good)
Thank you!

In general I learned that if there is a number in the time designation, then に should be used.

Huh? Why don't you, then?

I think you use に for all time designations except the ones that are relative to the present.

example when not to use it: tomorrow. yesterday. next week. next year. and so on.

days of the weeks still needs it, and so does months. so not only time designations with digitals.