Determination of the day of the week determined for the latter part of the analysis. By using a given day August 13, 2009 which was a Thursday as a reference, with "Base" and "n" being the number of days and weeks it has been since 01/01/0001 to the given day, respectively and "k" the day into the given week which must be less than 7, "Base" is expressed as Knowing that a year divisible by 4 or 400 is a leap year while a year divisible by 100 and not 400 is not a leap year, a software program can be written to find the number of
North Wales editions for the Arfon/Dwyfor and Meirionydd districts. A weekly Welsh-language newspaper, "Y Cymro" is published each week by the "Cambrian News" from its Porthmadog office alongside two localised Welsh titles, "Y Cyfnod" (Bala) and "Y Dydd" (Dolgellau). "Yr Herald Gymraeg" is distributed by Trinity Mirror as a pull-out section in the Wednesday edition of the "Daily Post". There are also 24 Papurau Bro ("area papers") providing community news and generally published each month. A number of hyper-local websites in the area provide locally sourced news online. In Conwy county, BaeColwyn.com gives Welsh language coverage of the Colwyn Bay area since