What is the timetable for going out to sea at low tide in 2023?
1, (1, 16) Early tide: 0: 48; Late tide: 13: 12.
2. (Grade 2 and Grade 17) Early Tide:1:36; Late tide: 14: 00.
3. (Grade 3, 18) Early Tide: 2: 24; Late tide: 14: 48.
4. (4th and 19th) Early Tide: 3:12; Late tide: 15: 36.
5. (Day 5 and 20) Early Tide: 4 o'clock; Late tide: 16: 24.
6. (Day 6, day 2 1 day) Early tide: 4: 48; Late tide: 17: 12.
7. (7, 22) Early tide: 5: 36; Late tide: 18: 00.
8. (eighth day, twenty-third) Early tide: 6: 24; Late tide: 18: 48.
9. (September 9, 2004) Early Tide: 7:12; Late tide: 19: 36.
10, (10, 25th) Early tide: 8: 00; Evening tide: 20: 24.
1 1, (1 1, 26) Early tide: 8: 48; Late tide: 2 1: 12.
12, (12,27) Early tide: 9: 36; Evening tide: 22 o'clock.
13, (13, 28th) Early Tide:10: 24; Evening tide: 22: 48.
14, (14, 29th) Early Tide:11:12; Evening tide: 23: 36.
15, (15, 30th) Early Tide:12: 00; Evening tide: 0: 24.
Calculation method of tide:
The first half of the lunar calendar, that is, the first to fifteenth day, the morning is the day of the day × 0.8; Afternoon is the day × 0.8+24. If today is the ninth day, then the time of high tide in the morning is 9×0.8=7.2, which is 7: 00, 12.
The time of high tide in the afternoon is 9× 0.8+24 = 7: 36 pm. In the second half of the month, just subtract 15 from the days of the lunar calendar, and then calculate according to the previous formula.
Because the moon rises 48 minutes later than the day before, the fluctuation of tides is also delayed by 48 minutes every day. Seashells can be caught in Rizhao coastal area from two hours after low tide to about one and a half hours after high tide.