Related by context. Frequent words. (Click for all words.) 66 countdown clock 56 countdown 47 countdowns 39 numerals 39 clocks 39 clock 38 Sirens wailed 38 buttons 38 subways buses 37 Countdown 36 alarm clocks 36 subway stations 36 timekeepers 35 Space Shuttle Discovery 35 Election Day 35 Clocks 35 beep 35 Inauguration Day 35 clock ticks 35 stopwatch 35 Space Shuttle Atlantis 35 clock ticked 35 glitches 34 Times Square 34 JumboTron 34 screens 34 stopwatches 33 a.m. 33 subways 33 beeps 33 beeping 33 Daylight Savings Time 33 tickers 33 gyroscopes 33 sundial 33 flashing lights 33 subway trains 32 witching hour 32 Opening Ceremony 32 keyboard shortcuts 32 Clock 32 L' Enfant Plaza 32 signposts 32 scoreboards 32 timetables 32 kiosks 32 PlaNYC 32 WhiteHouse.gov 32 scoreboard 32 lights 32 blinking lights 31 doomsday 31 taskbar 31 entrance ramps 31 Space shuttle Endeavour 31 reset 31 orange cones 31 atomic clocks 31 yellow cabs 31 ringing bells 31 concourses 31 clock ticking 31 technical glitches 31 blastoff 31 showtime 31 alarm clock 31 space shuttle Discovery 31 turnstiles 31 glitch 30 reset button 30 raid sirens 30 subway 30 Jumbotron 30 ticker tape 30 crosswalks 30 escalators 30 flashing 30 director Mike Leinbach 30 QR codes 30 vernal equinox 30 thermometer 30 space shuttle Atlantis 30 counting 30 Glitches 30 odometer 30 DDOT 30 programmed 30 Trafalgar Square 30 stickers 30 signage 30 Freedom Tower 29 speedo 29 O Meter 29 PSP Go 29 ticks 29 landmarks 29 taxi cabs 29 Naval Observatory 29 PATH train 29 beeped 29 commuter train