Related Clues:

• Top deck on old ship lacking lights
• Shade of Oxford blue
• Sundown
• End of the day?
• Nearer black than white
• Lacking illumination
• Obscure - sinister
• Deprived of light
• Time towards the end of the day
• End of the day
• Black, perhaps — night
• Period after sunset
• Gloomy coastguard's last on rescue vessel
• When the Jewish Sabbath begins
• Perhaps a feature of the Katmandu sky