Broken in Ubuntu 19.04: TypeError: (new Date(...)).toLocaleFormat is not a function

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TypeError: (new Date(...)).toLocaleFormat is not a function

Stack trace:
  dateTimeFormat@/home/sudoranger/.local/share/gnome-shell/extensions/datetime-format@Daniel-Khodabakhsh.github.com/Utilities.js:15:85
  updatePreview@/home/sudoranger/.local/share/gnome-shell/extensions/datetime-format@Daniel-Khodabakhsh.github.com/FormatTarget.js:49:25
  create@/home/sudoranger/.local/share/gnome-shell/extensions/datetime-format@Daniel-Khodabakhsh.github.com/FormatTarget.js:55:2
  buildPrefsWidget/<@/home/sudoranger/.local/share/gnome-shell/extensions/datetime-format@Daniel-Khodabakhsh.github.com/prefs.js:136:61
  buildPrefsWidget@/home/sudoranger/.local/share/gnome-shell/extensions/datetime-format@Daniel-Khodabakhsh.github.com/prefs.js:136:2
  _selectExtension@resource:///org/gnome/shell/extensionPrefs/main.js:75:22
  _onCommandLine@resource:///org/gnome/shell/extensionPrefs/main.js:320:17
  main@resource:///org/gnome/shell/extensionPrefs/main.js:635:5
  @<main>:1:43

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I've resorted to use https://extensions.gnome.org/extension/1206/clock-override/ instead and it works like charm even in 19.04.