Date header 表示服务器开始处理请求的时刻，还是它开始发送响应的时刻？是否取决于情况或平台？
最佳答案
When a Date header field is generated, the sender SHOULD generate its field value as the best available approximation of the date and time of message generation. In theory, the date ought to represent the moment just before the payload is generated. In practice, the date can be generated at any time during message origination.
关于http - 什么时候确定 HTTP Date 响应 header ？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/51679807/