Ok, ill share my timing method. Its not mine actually. It is made by Joseph Ernest Martin
Look for a Ace in your Spread. The first Ace appeared in the spread is the one pointing when
Ace of Pentacles 1,2,3 month of the year
Ace of Cups 4,5,6 month of the year
Ace of Wands 7,8,9 month of the year
Ace of Swords 10,11,12 month of the year
Then see the last card or the card that sais final outcome in the spread position The number of the card is the number of weeks from the beginning of the month.
Then reduce the date you are making the reading to a singular number and search the same singular in the days of that week.
Example :
Lets say im doing celtic cross and we have ace of pentacles somewhere and as outcome 7 of swords. This means that the time will be the seventh week from first January 2014, which is from 10-th to 16-th February. Today's date is 26.07.2013 and it is reduced to number 3. So the day is 12 of February, because 12 is reduced to 3 either. Then we are taking the month where the founded date is which is 2 and we are adding the number of the last card to see the hour. If the card is even the our is in p.m. range if not is in a.m. range. Tha makes it 9 a.m.
So finally we can tell our client that the events which the reading represents will happen from now till 12 of February 2014 year 9 a.m.