update every hour at 59 minutes

main.go

@@ -69,8 +69,33 @@ func main() {
 
 	for { // Main program loop
 		refreshData()
-		log.Print("Sleeping for 6 hours...")
-		time.Sleep(time.Hour * 6)
+
+		// Update at 59 minutes on the hour
+
+		// Get current time
+		now := time.Now()
+
+		// Calculate the next time at 59 minutes
+		next := time.Date(
+			now.Year(),
+			now.Month(),
+			now.Day(),
+			now.Hour(),
+			59,
+			0,
+			0,
+			now.Location(),
+		)
+
+		// If we've already passed this hour's 59th minute, go to next hour
+		if !next.After(now) {
+			next = next.Add(time.Hour)
+		}
+		// Duration to sleep
+		duration := time.Until(next)
+		log.Printf("Sleeping until %v (%v)", next, duration)
+
+		time.Sleep(duration)
 	}
 }