Digital clock toggle switch

• Initials on a bus transfer
• Letters on some faces
• Convenience store chain
• West Coast convenience store chain
• Like 12-hour clocks
• Clock letters that are never all lit at the same time
• Toggle on a clock
• Alarm clock toggle
• Day-and-night, in a way

Wikipedia Word definitions in Wikipedia
thumb|right|upright=1.0|A BP with an ampm in Cranberry Township, Pennsylvania near Pittsburgh right off the Pennsylvania Turnpike . The ampm brand (rarely "am/pm") is a convenience store chain with branches located in several U.S. states, including Arizona ...