Timothy O'Brien

Tim was the Chief Navigator/Records officer/Pilot onboard the USS Hermes (NCC-585) in the late 23rd century. 

Early life before Starfleet
Tim was born on December 17, 2241 human calendar time on the planet Earth in Dublin, Ireland.

Chronology

 * 2241: Tim is born on the planet Earth in Dublin, Ireland.
 * 2259: Tim enters Starfleet Academy
 * 2263: Tim graduates Starfleet Academy and promoted to Ensign, the first assignment is the USS Savary as a navigator.
 * 2265: Tim is promoted to Lieutenant junior grade and is assigned to the USS Struve as an Assistant Chief Navigator.
 * 2270: Tim is promoted to full Lieutenant and to the USS Hermes the Chief Navigator/Operations Officer.