Universal time service in the years 1966-1975 is reviewed, including astronomi- cal time observations, the Joint System of universal time, the rapid service and the controling of the transmission of UT_1 time signals.

• 本文回顾了1966-1975年的我国世界时工作；包括天文测时；综合系统；快速服务和UT_1时号发播控制情况.