Singapore uses a time zone eight hours in advance of UTC, (UTC+8). It is known as Singapore Standard Time or SST, and is the same as Australian Western Standard Time, Central Indonesia Time, Malaysian Standard Time, Philippine Standard Time, Chinese Standard Time, Chungyuan Standard Time (in Taiwan, ROC), Hong Kong Time and Macau Standard Time.According to longitude, Singapore is 103° 51' 16" East of Greenwich, and lies within the UTC+7 time zone. Before 31 May 1905, the local time was 6:55:25 ahead of Greenwich Mean Time. During the Japanese occupation of Singapore, UTC+9 was used. UTC+7:20 and UTC+7:30 were used for daylight saving time. When Peninsular Malaysia moved its standard time 30 minutes ahead of UTC+7:30 to UTC+8:00 in 1981, Singapore followed suit for economic and political reasons. The city state started using UTC+8 on 1 January 1982, and the country celebrated New Year's Day half an hour earlier.