Park open daily 5 a.m.-11 p.m., Apr. 1-late Oct.; 5 a.m.-10 p.m., rest of year. Conservatory open daily 8-7, mid-May to mid-Sept.; 8-6, first day of DST to mid-May; 8-5, mid-Sept. through Oct. 31; 8-3:30, rest of year. Conservatory closed Jan. 1, Martin Luther King Jr. Day, Thanksgiving and Christmas. Japanese Garden open 8 a.m. to half hour before dusk, Apr. 1-Nov. 1. Allow 2 hours minimum.