日期格式更改 UTC [重复]答案

【问题标题】：Date format change UTC [duplicate]日期格式更改 UTC [重复]
【发布时间】：2025-12-25 23:20:25
【问题描述】：

如何在 Rstudio 中将此日期格式 2020/02/06T08:14:26z 更改为“更简单的日期”？

注意“z”是一个小写字母

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【解决方案1】：

df$ddate <- format(as.Date(df$ddate), "%d/%m/%Y")

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【解决方案2】：

另一个选择是 chron 包 - 它很好，简单，最重要的是，它可以完成这项工作。

如果您没有安装 chron，请执行以下操作：

 install.packages("chron")
 # load it
 library(chron)
 # make dummy data
 bdate <- c("09/09/09", "12/05/10", "23/2/09")
 wdate <- c("12/10/09", "05/01/07", "19/7/07")
 ddate <- c("2009-09-27", "2007-05-18", "2009-09-02")
 # notice the last argument, it will not allow creation of factors!
 dtf <- data.frame(id = 1:3, bdate, wdate, ddate, stringsAsFactors = FALSE)
 # since we have characters, we can do:
 foo <- transform(dtf, bdate = chron(bdate, format = "d/m/Y"), wdate = chron(wdate, format = "d/m/Y"), ddate = chron(ddate, format = "y-m-d"))
 # check the classes
 sapply(foo, class)
 # $id
 # [1] "integer"

 # $bdate
 # [1] "dates" "times"

 # $wdate
 # [1] "dates" "times"

 # $ddate
 # [1] "dates" "times"

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