Uncaught (in promise) Error: Unknown function: dateTime

[sven5]

Hi,

when using groq.dev the dateTime function doesn't seem to work. Could you please explain what's wrong here?
query:

*[completed == true && userId == 2]{
  title,
    "now": dateTime(now())
}

error in browser console:

86527f614cf25511c4200490dbce8557fd7f1f1f.84029c43eb6a4d244e4a.js:1 Uncaught (in promise) Error: Unknown function: dateTime
    at FuncCall (86527f614cf25511c4200490dbce8557fd7f1f1f.84029c43eb6a4d244e4a.js:1)
    at x (86527f614cf25511c4200490dbce8557fd7f1f1f.84029c43eb6a4d244e4a.js:1)
    at Object (86527f614cf25511c4200490dbce8557fd7f1f1f.84029c43eb6a4d244e4a.js:1)
    at async r._generator (86527f614cf25511c4200490dbce8557fd7f1f1f.84029c43eb6a4d244e4a.js:1)
    at /async https:/groq.dev/_next/static/chunks/86527f614cf25511c4200490dbce8557fd7f1f1f.84029c43eb6a4d244e4a.js:1