# How can I alter the format of a Date within the title string **URL:** \ **Category:** Support\ **Created:** [December 30, 2015, 8:47pm UTC](https://community.mp3tag.de/t/how-can-i-alter-the-format-of-a-date-within-the-title-string/17513 "2015-12-30T20:47:21Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![JohnLBergqvist](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/j/49beb7/32.png) [@JohnLBergqvist](https://community.mp3tag.de/u/JohnLBergqvist)\ **Post date:** [December 30, 2015, 8:47pm UTC](https://community.mp3tag.de/t/how-can-i-alter-the-format-of-a-date-within-the-title-string/17513/1 "2015-12-30T20:47:21Z")
I have various files where the title is simply a date, in the following Format: "DD/MM/YYYY". How would I create an action that would update that title by altering the format of that string, so that it would be in the form of: "YYYY-MM-DD"? ---
**Author:** ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)\ **Post date:** [December 30, 2015, 9:04pm UTC](https://community.mp3tag.de/t/how-can-i-alter-the-format-of-a-date-within-the-title-string/17513/2 "2015-12-30T21:04:55Z")
Create an action of the type "Replace with regular expression" for th field Search string: (\d\d)/(\d\d)/(\d\d\d\d) Replace string: $3-$2-$1 ---
**Author:** ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)\ **Post date:** [August 9, 2026, 3:03pm UTC](https://community.mp3tag.de/t/how-can-i-alter-the-format-of-a-date-within-the-title-string/17513/3 "2026-08-09T15:03:01Z")
Closed on August 9, 2026, 3:03pm UTC This topic was automatically closed 2 days after the last reply. New replies are no longer allowed.