Is the starting time of the six hexagrams based on the time when the coins are shaken for the first time or when all coins are shaken for six times?

First, it usually takes less than a minute to shake the hexagrams once, so there is almost no difference between the first time to shake the hexagrams and the time to shake them all. Unless you shake divination at 12 pm, it's one day at first, and the next day after shaking divination. The rise and fall of hexagrams are mainly judged by Japanese and monthly construction, which has little to do with time. So you can ask this question at any time, as long as it is not exaggerated.

Second, the time of divination does not affect the result. Anytime, but whether the state of divination concentrates on the accuracy of six hexagrams. The more you concentrate, the clearer the image of divination will be!