Everyone says to me time ceases and the sun and moon cease to exist in eternity but can you explain if they disappear why God speaks of them always being there in Jer 31:36 and why Sabbaths and New MOONS are mentioned in Isa 66:23 if there is NO moon and NO time???? Sabbaths require the counting of 7 days a unit of time and in Rev 20:10 day and night are units of time spoken as existing FOR EVER. Even Eph 2:7 speaks of “ages” plural so you would have to have some time measurement to divide the ages up.
 
Paul