حَانَ: قَرُبَ، آنَ to come, approach, draw near; to mature, ripen, become ripe
حَانَ الوَقْتُ the time has come, now is the time, it is time, it is high time
حَانَ لَهُ أنْ the time has come for him to..., it is time for him to..
أمَا حَانَ لَكَ أنْ تَفْهَمَ haven't you understood yet?!
حَانَتْ مِنْهُ الْتِفَاتَةٌ he happened to turn around