13th December, on the day of the earliest sunset in Dublin, my guest is Eibhear OHanlon, who more than anyone else knows how to call it a day. He has been the curator of theauldsthretch twitter account, now on mastodon and bluesky for 8 years. Each day he lets gives people a bit of hope and a warning about the length of their day. We talk about earth tilts, the weirdness of leap years, how do you know the sun has set, the importance of a smidge.