Have a good day
Some years ago I bought a car which had a digital display on its dashboard. The 10 digits displayed showed the date and time, such as
17:05:86 15:32
A 鈥済ood day 鈥 was a day during which the 10 digits displayed were all different. In particular, I recall two good days, more than four months apart. The day mid-way between the two was not a good day, but in each month between those two good days there was at least one good day.
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What were the dates (day and month) of those two particular good days?
WIN 拢15 will be awarded to the sender of the first correct answer opened on Wednesday 24 March. The Editor鈥檚 decision is final. Please send entries to Enigma 1583, 快猫短视频, Lacon House, 84 Theobald鈥檚 Road, London WC1X 8NS, or to enigma@newscientist.com (please include your postal address).
Answer to 1577 Happy new year: The three numbers are 325, 784 and 901
The winner Jeremy Gray of Epsom, Auckland, New Zealand