The Tokyo Stock Exchange is planning on extending its regular trading hours by an extra 30 minutes giving investors more time to deal with issues, such as a system failure, a source familiar with the matter said Friday.The first extension of closing hours since 1954 is expected to take place in three years and will see the market close at 3:30 p.m. rather than the current 3 p.m., according to the source.The envisaged move would come almost a year after the world's third-largest bourse experienced a day-long stoppage on Oct. 1, which also suspended all trading of equities listed on stock exc…READ FULL ARTICLE