Changes and additions:
- April 5: Posting initial version of countdown
- April 20: Updating to reflect 5/22 launch target
- April 22: Updating; 13-minute shift prior to T-11 hold
- May 10: Updated version to reflect July launch date
- June 15: Replacing estimated countdown with actual NASA timeline
- June 17: Updating launch time
- July 7: Adding crew timeline
- July 7: Updating launch time
- July 11: Fixing typo in launch time
- July 21: Updating for 7/26 launch; includes crew timeline
- July 22: Correcting crew schedule; updating launch time
- July 25: Updating launch time

This is an edited version of NASA's latest STS-114 countdown chart. Note that all times up to and including the start of the final hold at T-minus nine minutes are targeted for the opening of the planar window. The final hold will be extended to result in a launch at the desired "in-plane" time. The first two columns of numbers give "T-minus" time while the next three columns give the actual time to launch (L-minus time) in hours, minutes and seconds. Comments and corrections welcome.