时效

Traditional form:

時效

Pinyin (reading):

shíxiào

Definitions:

• timeliness
• period of viability or validity
• (law) prescription; limitation
• (metallurgy) aging

Characters:

• 时 - time, season; period, era, age
• 效 - result, effect; effective

Traditional characters:

• 時 - time, season; period, era, age
• 效 - result, effect; effective