【中文版】

退火车票时间是指旅客在火车发车前办理退票手续的时间。根据不同的铁路局和退票政策，退火车票时间也会有所不同。

一般来说，退火车票的时间是在发车前60分钟到25分钟之间。在发车前60分钟以上办理退票手续的，需要到车站指定的窗口办理；在发车前25分钟以内办理退票手续的，需要在车站指定的窗口办理。

需要注意的是，在春运、暑运等客流高峰期，退火车票时间可能会提前。因此，旅客在购票前应该了解铁路局的退票政策，以免耽误行程。

另外，如果旅客需要办理改签手续，应该在原发车时间前到车站窗口办理。如果已经取出了纸质车票，则需要在窗口前排队办理。

总之，退火车票时间是根据铁路局和退票政策而定的，旅客应该提前了解相关信息，以免造成不必要的麻烦。

【英文版】

The time for returning train tickets refers to the time for passengers to handle ticket return before the train departure. According to different railway administrations and return policies, the time for returning train tickets may vary.

Generally speaking, the time for returning train tickets is between 60 minutes and 25 minutes before departure. For those who need to handle ticket return more than 60 minutes before departure, they need to go to the designated window at the station; for those who need to handle ticket return within 25 minutes before departure, they need to go to the designated window at the station.

It should be noted that during the busy periods such as the Spring Festival and summer vacation, the time for returning train tickets may be earlier. Therefore, passengers should understand the railway administration's return policy before purchasing tickets to avoid any delays.

In addition, if passengers need to handle ticket change, they should go to the station window before the original departure time. If the paper ticket has already been taken out, they need to queue up at the window.

In short, the time for returning train tickets depends on the railway administration and return policy. Passengers should understand relevant information in advance to avoid unnecessary trouble.