Unverified60% confidenceFactTime unknown
大语言模型缺乏实时时间概念，不知道'今天'是哪一天，这导致Agent即使配备搜索工具也可能返回过时信息
2
Sources
60%
Confidence
Long-term
Relevance
6/1/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedLLMs cannot autonomously perceive the current date and time and require it to be explicitly provided through prompts.62% similarUnverifiedRepresentative tools for temporal expression normalization include SUTime and HeidelTime, but LLMs handle temporal expressions not by relying on these rule engines but by inferring from statistical patterns in training data.59% similarUnverified使用now.minus({days: 7})表达式返回精确到毫秒的DateTime对象，并能自动处理夏令时切换、时区偏移等边界情况59% similar
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