Shuttle Atlantis May Launch a Day Early

Mission to Save Hubble Could Launch a Day Early, Space.com
“NASA is hoping to launch the space shuttle Atlantis on the last service call to the Hubble Space Telescope a day earlier than planned to avoid schedule conflicts near its Florida launch site, agency officials said Thursday.
The long-delayed Hubble repair flight, which mission managers have now found to be less risky than initially thought, would lift off on May 11 at 2:01 p.m. EDT (1801 GMT) if the earlier target is approved next week.”