One of the questions I hear most often is about when to do the weekly review. A regular review of all your outstanding agreements is one of the most powerful activities you can do to maintain perspective and increase relaxation. When you should do it is a case-by-case answer, thus most productivity experts hesitate to dictate a rule about it. So let's talk about the different options you might consider, based on your specific job considerations. Then I leave it to you to use your natural knowing to decide.
I. What time of day should I do my review?
People have different preferences for various times of day. Many people have the most energy available first thing in the morning, in the evening, or late at night. I have never encountered anyone who has a peak in energy in the mid-afternoon (without the use of caffeine). I suspect this is because most people have just eaten lunch, have been working for a significant amount of time, and the warmth of the day invites sleep. Whatever the reason, my main suggestion here is to avoid the afternoon (despite how easy it can be to put the review off until later, later, later.)
Choose a time to do your strategic planning and reviewing that fits your energy level. Find out if you are a morning person or a night person, and do the review accordingly. If you are low on energy or feeling bored, do not do the review. Go for a walk, take a break, or water a plant. You will thank yourself for the gift of a focused review, which frees up new ideas and creative energy.
II. What day of the week should I do my review?
Friday - The most popular day of the week to do the review. Pros: you are relaxed and clear going in to your weekend, you get an opportunity to review nearly everything you completed during the previous work week, and it prepares you to start again on Monday with a clean working system. Cons: little opportunity to follow up on Waiting For items since the work week is almost over, and you may uncover items which would have been more strategically handled earlier in the week.
Thursday - Thursday has gained a loyal following amongst some GTD users because it answers the problem of the Friday review, giving you plenty of time to follow up with colleagues, Waiting For items, and to complete any essential projects you made need to do before the end of the work week. In addition, some people have discovered that by doing their review the day before their colleagues do theirs, they feel "ahead of the game." Be careful not to get too immersed in that game! The disadvantage of a Thursday would simply be not being as close to the weekend when you get that breath of fresh air.
Monday - I only recommend a Monday review in two cases: 1) you didn't get to the review on Friday or 2) The week ahead looks challenging and some brilliant stroke of prioritizing could be your life raft. If you see a week coming up that contains particularly critical work, you might use the weekly review to clear the decks, and your mind. The basic part of human consciousness likes seeing all of our agreements objectified, and once it has that it can then support and cooperate with your priorities.
Sunday - Many executives and CEOs prefer a Sunday review because it adds a quality of leisure to the process. There's nothing wrong with using little tricks to get yourself into the discipline of the review, or any habit for that matter. Some tricks I have seen work well for people: wear a special outfit, reward yourself with your favorite drink, play your favorite piece of music, plan a just-for-fun activity directly after the review, or incorporate self-appreciation and nurturing activities into the review itself. You can do a "Sunday Review" anytime during the week. But the culturally-approved structure of weekdays and weekends seems to make it easier to access relaxed focus after normal business hours.
In summary:
Know that you are uniquely capable of managing your energy level based on the time of day, the day of the week, and your "hard landscape" (commitments on the calendar). Choose times that work for you to do strategic review and planning. Be willing to adjust according to the feedback your body gives you. Make it enjoyable. The review is your opportunity to close the loop on all of your agreements, and acknowledge yourself as you acknowledge your current reality.