I'm not sure that my dear brother MHGinTN would entirely agree on this. But I must say that his concepts of linear and planar time pretty much jibe with the temporal meanings I assign to the axes X and Y respectively.
But then there would need to be a "volumetric time," to "encompass" them both, and bring them into mutual relation.... Need a new axis!
But that hypothetical Axis cannot be located on the Cartesian Plane for that plane is relentlessly "flat."
But what if we visualized the space/time continuum as having multiple expanded dimensions or even infinite dimensions?
To make it interesting, we might consider Everett's Multi-World Theory which derives from Schrödinger's equation (the cat is both alive and dead.)
As MHGinTN said, paraphrased, in the absence of time events cannot occur and in the absence of space things cannot exist.
Both are very true, but a choice event whether quantum or classical (choosing a taco over a hamburger for lunch) - does not necessarily collapse the apparent other paths, e.g. the hamburger choice. At least in Everett's theory all choices were made and the consequences exist some where/when.
In a finite space/time continuum with volumetric time - past, present and future concurrently exist. But if his theory is correct then all paths would also exist.
If so, the Great White Throne judgment will be amazing as all the "what ifs" would be answered. Everything would be known.
But time and space (however many dimensions) are part of the Creation and not restrictions on the Creator of them. Moreover, we Christians are already alive with Christ in God and thus have a sense of not really being "home" in the flesh.
But ye are not in the flesh, but in the Spirit, if so be that the Spirit of God dwell in you. Now if any man have not the Spirit of Christ, he is none of his. - Romans 8:1-9
What? know ye not that your body is the temple of the Holy Ghost [which is] in you, which ye have of God, and ye are not your own? - I Corinthians 6:19
Every "natural" men Jesus was speaking to could physically hear Him, but only those with "ears to hear" could spiritually hear him.
But mortal (4D) Christians discern spiritually as well as physically, i.e. the Y axis. So we know things or have understanding on top of, or perhaps even in spite of, our sensory perceptions.
God's Name is I AM.