Good to see the weekend went good with the kids. The question you have in regards to time...is really up to you. Doesn't that sound pretty good...lol. The honest truth is that your marriage is done...and the sooner you except that completely...the better off you are. Now the decision you make on time is yours in that you can focus yourself on activities or acts that are not destructive to your marriage or the integrity of your vows or you can say I am done. Non destructive things are giving your wife space, focusing on yourself, gal'ing, the kids, etc....activities that have no direct affect on the marriage, but aren't destructive. Now if you decide you have invested enough time in saving the marriage and are done; you can go the destructive route by continually talking to your wife and not giving her space, focusing on your wife, arguing with you wife, dating, aggressively pressing the divorce, etc...
The choice is yours to make. You can go ahead and live your life with the possibility (not hope, expectation, desire....just the possibility) of reconciliation or you can give up completely. It really is a hard mindset to explain...it just happens one day and it does feel good when it does...like a weight being lifted.
According to Sandi, Amy, and a host of others on here (there is a good one in divorced, but not done at the moment...mar something or other) they eventually do. I read somewhere that close to 70% of WAS regret their decision...sometimes it takes months, other times it takes years. People get so blinded by outside influences that things have to be better somewhere else that it takes a long time to realize that that things might not have really been that bad. Think of it almost like a job you left....when you were there it sucked, but down the road you might think "That wasn't so bad". It takes time and change in perspective some times to realize what you have. Did you ever have that realization?