Philippine Standard Time (Filipino: Pamantayang Oras ng Pilipinas, abbreviated PST), also known as Philippine Time (PHT) and informally Juan Time, is the official name for the time in the Philippines. The country only uses one time zone (UTC+08:00), and for a short period, it also used daylight saving time which is known as Philippine Saving Time (abbreviated PHST) as an emergency measure.
Geographically, the Philippines lies within 116°40′ and 126°34′ east of the Prime Meridian, and is physically located within the UTC+08:00 time zone. Philippine Standard Time is maintained by the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA). The Philippines shares the same time zone with Hong Kong, Macau, Singapore, most parts of China, Taiwan, Malaysia, Brunei, central Indonesia, and Western Australia.
Philippine Standard Time was instituted through Batas Pambansa Blg. 8 (that defined the metric system), approved on 2 December 1978 and implemented on 1 January 1983. The Philippines is one of the few countries to officially and almost exclusively use the 12-hour clock in non-military situations.