There are so many factors involved in job hunting that it's natural to want to get every nitty gritty aspect good. While it's important to jump on a listing as soon as you can get your fabric together,there isn't any reason to get hung up on the time of day you submit your initial correspondence or application. Each hiring manager will have his or her own process for reviewing the applications that come in and a set deadline for filling the position. It's more important to make certain your cover letter is flawless and that your correspondence is impressive than it is to be concerned with the time you submit it. On the off chance the hiring manager is the type of person who pays attention to the time you submit your application, sending an email early in the morning - as in between 6 and 9 a.m. - could be impressive because it says you are an enthusiastic early bird. That being said, and make certain to hold the hiring manager's schedule in intellect whether you decided to make a follow-up call. In that case,call during business hours on a lower stress day of the week like Tuesday or Wednesday and draw what you will say in advance. Best of luck!
Source: popsugar.com