Numerology can calculate "lucky" periods by determining the number represented by the periods. If the number is identical to another number in the person's numerology chart, especially one of the chart's major numbers, the period can be said to be lucky. Luck, in this case, is the resonance of the period with a number in the person's chart which, when one considers that like attracts like, is more likely to attract things that resonate with the person than other periods would be.

Probably your friend used the three major name numbers and the birthdate number as determining numbers. (In your case, those would be 5, 2, 6, and 1). Reduce the number of the period in question. If the number matches one of the determining numbers, the period can be said to be lucky.

Thus, in your case, 1 o'clock, 2 o'clock, 5 o'clock, 6 o'clock, and 11 o'clock (11 reduces to 2, as in 1+1=2) would be considered lucky hours. If you use a 24-hour click, then also 14 o'clock, 15 o'clock, 19 o'clock, 20 o'clock, 23 o'clock, and 24 o'clock.

Similarly for months (assuming months are the periods of the year being referred to). January being 1 and December being 12, the lucky months would be January, February, May, June, and November.