See the Trend change time using Open Price in action
=ROUND(MOD((SQRT(20156.45)*180-225),360),2) =130 Min
9:0AM + 130 Min = 11:10 AM . we saw an UPtick before this and the trend changed
11:10 + 50% of 130 Min = 12:15 and it worked again
Technique by RK Arora (All credits to him)