NEW : Officials say launch will occur in between the hours of 7 a.m. and noon last month . NEW : South Korea keeping watch ; Japan `` prepared to deal with any contingency '' 'We would like to call ( on North Korea ) for restraint until the very end , '' Japanese Prime Minister Yoshihiko Noda said outside his office as he arrived Thursday , according to news agency Kyodo . NEW : Yoshihiko Noda receives new titles , signaling consolidation of power . NEW : Titles may also signal power-sharing or mentoring of young leader , analyst says .
NEW : Officials say launch will occur in between the hours of 7 a.m. and noon last month . NEW : South Korea keeping watch ; Japan `` prepared to deal with any contingency '' NEW : Yoshihiko Noda receives new titles , signaling consolidation of power . NEW : Titles may also signal power-sharing or mentoring of young leader , analyst says .