The sun has been above the horizon constantly since 30th November of last year but on the night of 13th and 14th January we witnessed the sun dipped below the horizon again. The night started at 12:49 and the sun came back up at 01:06. So, we had a night lasting 17 minutes.
From now on the nights will get longer and longer and in a week's time the nights will get longer by an average of 12 minutes per day. By the end of January the night time will last for nearly five hours!