- 2254: Possible date her keel was laid down
- 2258: Shakedown trials / Nero's attack on Vulcan / Placed under Kirk's command
- 2260: Deep space mission to Nibiru / Marcus's attack on Kronos / First five year mission under James T. Kirk begins
- 2262: Possible date of first major refit
- 2263: She is lost at planet Altamid, three years into her five year mission
Compare this to the original Enterprise, which was probably something like this:
- 2242: Possible date her keel was laid down
- 2245: First five year mission, under Captain Robert April
- 2251: Second five year mission, under Captain Christopher Pike
- 2256: Third five year mission, under Captain Christopher Pike
- 2262: Major refit
- 2264: Enterprise passed to James T. Kirk
- 2265: Fourth five year mission, under Captain James T. Kirk
- 2266: Major refit
- 2270: Major refit
- 2273: Fifth five year mission, under Captain James T. Kirk
- 2278: Becomes academy training ship
- 2285: Battle of Mutara Nebula, later lost at the Genesis Planet
I look forward to seeing how the Enterprise A, which in the Kelvin timeline, has been given to Kirk about 23 years earlier than in the original timeline, will fare as a ship - hopefully we will see a good few five year missions of deep space exploration out of her.