In 12-hour striking, used most commonly in striking clocks today, the clock strikes once at one a.m., twice at two a.m., continuing in this way up to twelve times at 12 noon, then starts again, striking once at one p.m., twice at two p.m., up to twelve times at 12 midnight.
The half-life of clonazepam (Klonopin) is about 30 hours. If you only take one dose, the general rule is the medication will statistically be out of your system after 5 half-lives, when only 3.125% of the drug remains in the body. This would mean that clonazepam will be out of your system after about 150 hours, but this can change based on your specific enzymes.
Re: How long for phentermine to get out of your system?? It takes 5 half lives for a drug to get completely out of your system. Phentermine has a half life of between 16-31 hours, so it would take anywhere from 80-155 hours (3.5 to 7 days) to be completely free of it.