mean time   (TTS Sound)

The mean_time has 1 Senses.

• mean time, mean solar time
• 平均太陽時
• (astronomy) time based on the motion of the mean sun (an imaginary sun moving uniformly along the celestial equator)
• 平均太陽の運動に基づく時間（天の赤道に沿って一様に動いている想像上の太陽）