Related Clues:

• Dream time approaching, close to sunset
• It's almost time when I should retire
• 'Sweet dreams'
• Dark period for titled fellow losing his 'K'
• Battle force turns to north when it's dark
• Strange thing, but it's time for bed
• Man’s heading off when it’s time to retire
• Dark near light, ultimately
• When to go to bed
• 'Burns' and 'Bonfire' can both precede this word
• Man on board loses head in dark
• Darkness close — closer in east
• Hours after sunset
• Darkness close, end of daylight
• It gets dark