The time of low tide and high tide can be calculated according to different geographical locations and time of day. Generally speaking, the time of low tide and high tide can be calculated by the following formula:

1. The time of high tide on the first day of the first month of the Lunar Calendar: 11:45-13:00.

2. The time of high tide on the second and the third day of the second month of the Lunar Calendar: 12:45-14:00.

3. The time of high tide on the fifteenth and the sixteenth day of the Lunar Calendar: 1:45-2:00.

4. The time of high tide on the seventeenth and eighteenth day of the seventeenth month of the Lunar Calendar: 1:45-3:00.

4. The seventeenth and eighteenth high tide of each lunar month: 2:45-3:00.

5. The twenty-second and twenty-third high tide of each lunar month: 4:45-5:00.

6. The twenty-fourth and twenty-fifth high tide of each lunar month: 5:45-6:00.

7. The twenty-sixth and twenty-seventh high tide of each lunar month: 6:45-7:00.

8. The twenty-sixth and twenty-seventh high tide of each lunar month: 6:45-7:00.

8. 28th and 29th of each lunar month: 7:45-8:00.

9. 30th and 30th of each lunar month: 8:45-9:00.

The above are the approximate times of high and low tides, but the exact times are also affected by factors such as geographic location and seawater temperatures, and therefore need to be adjusted according to the actual situation. adjustments.