Each zone is theoretically 15 degrees of longitude wide.

每个区域理论上都是 15 度经度宽。

Therefore, each day was shortened by four minutes for every degree of longitude he crossed.

因此，他每跨过经度，一天就会缩短四分钟。

The Pacific Ocean extends north to south between the two polar circles and east to west between America and Asia over an expanse of 145 degrees of longitude.

太平洋从北至南，是在南北两极之间，从西至东，是在亚洲和美洲之间，共有经度145度的宽广。

If it's 3: 00 AM in London, and where I am the clock says it's only midnight, I know that I'm three earth rotation hours away from London and that means 45 degrees of longitude.

如果现在是伦敦凌晨 3 点，而我所在的地方时钟显示现在才午夜，我知道我距离伦敦三个地球自转小时，这意味着 45 度经度。