add clock sync option

main.lua

@@ -321,8 +321,9 @@ local SETTINGS = {
     .. "shot over the shoulder with a slow parallax drift." },
   { DayNight.setting,
     "What time it is outdoors: pin the sky to DAY, NIGHT, DUSK or DAWN, "
-    .. "or let CYCLE run it -- ten minutes of sun, ten of moon, with the "
-    .. "shadows, the sky and the light following." },
+    .. "let CYCLE run it -- ten minutes of sun, ten of moon, with the "
+    .. "shadows, the sky and the light following -- or SYNC it to the "
+    .. "clock on the wall, so Kanto's evening falls when yours does." },
 }
 
 local schema = {}