Blue Monday (date) the melancholic mind-set of "Blue Monday"". The date is generally reported as falling on the third Monday in January, but also on the second or fourth Monday, or the Monday of the last full week of January. The first such date declared was 24 January in 2005 as part of a Sky Travel press release. The formula uses many factors, including: weather conditions, debt level (the difference between debt accumulated and our ability to pay), time since Christmas, time since failing our new year’s resolutions, low motivational levels and feeling of a need to take action. One equation used by
Determination of the day of the week Determination of the day of the week The determination of the day of the week for any date may be performed with a variety of algorithms. In addition, perpetual calendars require no calculation by the user, and are essentially lookup tables. A typical application is to calculate the day of the week on which someone was born or a specific event occurred. In numerical calculation, the days of the week are represented as weekday numbers. If Monday is the first day of the week, the days may be coded 1 to 7, for Monday through Sunday, as is practiced in