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 == When will Prince Charles overtake Edward VII as the longest-serving Prince of Wales? == 

 The article states (under the Section: Youth, Subsection: Created Prince of Wales) that ""Charles is the oldest Prince of Wales since it became the title granted to the heir apparent to the English throne, and the third-longest serving Prince of Wales, behind George IV and Edward VII, whom he will pass on 10 October 2017"". Is this date correct? Edward VII's tenure as Prince of Wales lasted from 8 December 1841 to 22 January 1901, a period of 59 years and 45 days. Charles was created Prince of Wales on 26 July 1958 and 59 years and 45 days from that date will be 10 September 2017 so that should be the date on which Charles will overtake Edward VII as the longest serving Prince of Wales and not 10 October 2017 as the article currently states.82.26.7.221 (talk)  

 Corrected. I changed the other day too as that also seemed out. DrKiernan (talk)  
 But 26 July 1958 + 21594 days brings you to 8 September 2017, so that's the day they'd be equal, and 9 September 2017 would be the day Charles exceeds Edward. - Nunh-huh  

 I have changed the date Charles would exceed the age William IV was when he assumed the throne to 20 September 2013 on http://en.wikipedia.org/wiki/List_of_UK_monarchy_records also as it had previously said on there as well that this date would be 18 September 2013. For consistency, not sure if any other pages would need updating likewise. With regards to the date that Charles would overtake Edward VII as the longest serving Prince of Wales, 59 years from 26 July 1958 would be 26 July 2017, then it would be (5) days to the end of July then add the (31) days in August and then (9) days in September to give 9 September as the date they would be equal since (5) + (31) + (9) = 45 and hence 10 September as the earliest date Charles would have overtaken Edward VII's record. (unsigned) 

 If you want an accurate date, you need to calculate in days, not years, because all years are not the same: some have 365 days, and others have 366 days. You'd apparently say 8 December 1841 and 8 December 1900 are exactly 59 years apart, but in fact they are ((59x365) + 14) = 21549 days apart. For the actual dates involved: 8 December 1841 + 21594 days = 22 January 1901. 26 July 1958 + 21594 days = 8 September 2017. - Nunh-huh  

 For this calculation, between 8 December 1841 and 8 December 1900 there were 59 years (i.e. 59x365 = 21535 days) and also 15 extra days taking the leap years into account (i.e. 29 February for each of 1844, 1848, 1852, 1856, 1860, 1864, 1868, 1872, 1876, 1880, 1884, 1888, 1892, 1896, 1900) to give 21550 plus 45 days to give 21595 days in total so they would be equal on 9 September and Charles would exceed Edward VII's record on 10 September. This can also be confirmed with Excel or other such software. Subtracting 08/12/1841 from 22/01/1901 gives 21595 days and adding 21595 days to 26/07/1958 gives 09/09/2017 as the day they would be equal and 10 September as the first day Charles could claim to have exceeded Edward VII's record. (unsigned) 

 1900 was not a leap year. If Excel is telling you it is, you should return it for a refund. - Nunh-huh  
 Actually, forget that, they'll never give you your money back. It's a known bug in Excel: see . Suffice it to say that Excel is pretty much useless for historical dates. - Nunh-huh  

 I'm going to take silence as the absence of further objection. I will change the article so that it gives the correct date, 9 September 2017, as the date when Charles would become the longest serving Prince of Wales. I've also calculated the correct date for when he would surpass the age of William IV on assuming the throne. William IV was born 21 August 1765, and assumed the throne on his father's death on 26 June 1830. Thus he was 26 June 1830 minus 21 August 1765 or 23684 days old. Charles was born 14 November 1948. If we add 23684 days to that, we would get 18 September 2013, the date on which he would equal the age at which William IV ascended the throne, and 19 September 2013 as the date on which he would exceed it. I will change the article accordingly. - Nunh-huh  

 Yes, please do take silence as the absence of further objection. I have also changed the date Charles would exceed the age William IV was when he assumed the throne to 19 September 2013 on http://en.wikipedia.org/wiki/List_of_UK_monarchy_records for consistency as it had previously said 20 September 2013 on there. However, when will the reign of the current monarch, Elizabeth II, exceed that of Queen Victoria? This web page, http://en.wikipedia.org/wiki/List_of_longe