Tomorrow (December 21st) may not bring a Mayan apocalypse - but it will be the shortest day of the year in terms of daylight.
This is something people should take into account when on the hills at this time of year, the Northern Constabulary has said, following two mountain rescues carried out in fading afternoon light.
Lochaber Mountain Rescue had to help a man stuck while abseiling on Ben Nevis and his party off the mountain, coming down in the dark, while the other saw a man being rescued after a fall in the Cairngorms.
The constabulary said: "Climbers are reminded to allow for shorter hours of daylight at this time of year, with darkness closing in during mid-afternoon."
With cold and snowy weather around, those heading for the hills should also look to take precautions like thermal clothing
to stay warm and crampons
to keep their footing on hard snow.
Because it is so far north, the Highlands sees sunsets at around 15:30 GMT at this time of year, with sunrise just before 09:00.