Fish Marks (Projected Probability of Fishing Success Indicators)

The number of fish marks on the Fishing Time screen indicates the projected probability of fishing success. Anywhere from zero to four fish marks are displayed, and more fish marks indicate that better success can be expected. Note however, that this in no way specifically guarantees your fishing success.

The fish mark indicator display is based on the current Moon age and Moon position (time angle). Fishing timing is said to be best when the Moon age is new Moon or full Moon, and second best during the Moon’s first quarter and last quarter. For the Moon time angle, 00:00 and 12:00 is said to be optimal, while 06:00 and 18:00 is said to be second best. The correlation of these factors results in the fish mark indications shown below.

	Hour Angle 00:00/12:00 Hour	Hour Angle 06:00/18:00 Hour	Other
New Moon/ Full Moon*
First Quarter/ Last Quarter
Other

Current Date’s Optimum Predicted Fishing Time Period

The Fishing time Screen shows two orange time periods centered on hour angles 00:00 and 12:00, and two blue time periods centered on hour angles 06:00 and 18:00. Each region indicates periods during which optimum fishing can be expected.

The orange region indicates the best fishing period as predicted by the watch, while the blue region indicates the next best fishing period. The part of a period in the current day that is already passed is indicated by a lighter color, while the darker color indicates the part of the period that has not yet passed. Times indicated by the periods can be read using values around the periphery of the watch face. The 12 o’clock position is noon, while 6 o’clock is midnight.

①

Time period centered on a Moon hour angle of 18:00 (Time of 18:00 hour angle = 08:50AM)

②

Time period centered on a Moon hour angle of 12:00 (Time of 12:00 hour angle = 02:10AM)

③

Time period centered on a Moon hour angle of 00:00 (Time of 00:00 hour angle = 02:00PM)

④

Time period centered on a Moon hour angle of 06:00 (Time of 06:00 hour angle = 08:05PM)

Current Month’s Hour Angle and Moon Age Indications

The location of the Moon indicator on the Fishing Time screen shows the current hour angle of the Moon, while the shape of the indicator shows the current Moon age. In the screen shown above, for example, the current Moon hour angle is 22:00 (12 o’clock position = hour angle 00:00, 6 o’clock position = hour angle 12:00), while the Moon age is 21.3 to 23.1.

The table below shows how Moon age is indicated by the Fishing Time screen indicator.

Moon phase	Moon age	Indicator
New Moon	0.0 - 0.9 28.7 - 29.5
	1.0 - 2.7
	2.8 - 4.6
	4.7 - 6.4
First Quarter	6.5 - 8.3
	8.4 - 10.1
	10.2 - 12.0
	12.1 - 13.8
Full Moon	13.9 - 15.7
	15.8 - 17.5
	17.6 - 19.4
	19.5 - 21.2
Last Quarter	21.3 - 23.1
	23.2 - 24.9
	25.0 - 26.8
	26.9 - 28.6