- 格林尼治时间 gélínnízhìshíjiān Greenwich Mean TimeThe standard time at the Royal Observatory in Greenwich, London; also known as Universal Time.
- 格林尼治本初子午线 gélínnízhìběnchūzǐwǔxiàn Greenwich meridianthe prime meridian passing through Greenwich, London, from which longitude is measured
- 格林尼治标准时间 gélínnízhìbiāozhǔnshíjiān Greenwich Mean TimeGreenwich Mean Time (GMT)
