what is the kanji for time?

The kanji for time is 時 (ji).

what about space?

The kanji for space is 空間 (kuukan).

great, now whats the japanese kanji for timespace, not space time, specifically TIME SPACW

The term "timespace" does not have a specific kanji in Japanese. To express the concept of "timespace" in Japanese, you would typically use the words for "time" (時) and "space" (空間) together or use a phrase like "時空" (jikuu), which combines the kanji for time and space.