1. Start at a major low or high. (Low in this case).
2. Begin counting if after 5 periods (in this case, weeks) there is no new low. An uptrend should be considered from the low.
3. Count how many weeks there are at one price. The most frequent level is the mode.
4. If the price is ABOVE the mode, then the trend is up.
5. The trend can accelerate once there is an entire time period (week) above the mode.
6. The move up can attain a level of the range traded around the mode, added to the mode (and from the low to the mode, added to the mode).
7. Time and price expire logically when the target(s) are reached and time runs out (6 week mode = rally for 6 weeks) and expect a return to the mode.
So, with this in mind, you wouldn't count the time to the left of the low, or the time prior to the low as that is part of the decline and not part of the advance.