He could not tell a calendar year from a leap year, lunar year or a solar year.

他分不清历年、闰年、太阴年或太阳年。

More accurate measurements show that it actually takes Earth exactly 365 days, five hours, 48 minutes, and 46 seconds to complete a solar year.

更准确的测量表明，地球完成一个太阳年实际上需要 365 天 5 小时 48 分 46 秒。