<P> The time in China follows a single standard time offset of UTC + 08: 00 (eight hours ahead of Coordinated Universal Time), despite China spanning five geographical time zones . The official national standard time is called Beijing Time (Chinese: 北京 时间) domestically and China Standard Time (CST) internationally . Daylight saving time has not been observed since 1991 . </P> <P> The special administrative regions (SARs) maintain their own time authorities, with standards called Hong Kong Time (香港 時間) and Macau Standard Time (澳門 標準 時間). These have been equivalent to Beijing time since 1992 . </P>

Is beijing and shanghai the same time zone