noun
Technical term in relativity theory; refers to the time coordinate in a specific reference frame, distinct from global or coordinate time.
特殊相対性理論では、各観測者が持つ局所時が異なることがある。
In special relativity, the local time of each observer can differ.
Compound of 局所 (local) and 時 (time), likely a direct translation of the English physics term 'local time'.