Intl.DateTimeFormat doesn't respect the passed culture

[bworline]

• Version: 10.13
• Platform: Windows Server v1607
• Subsystem: unknown

date = new Date('6/15/2017 1:03 PM');
Intl.DateTimeFormat('fr-FR', {year:'numeric', month:'numeric', day:'numeric', hour:'numeric', minute:'numeric'}).format(date)

expected:
"2017-6-15 13:03"

actual: (I am in the US with en-US culture settings for language and locale)
"6/15/2017, 1:03 PM"

This worked fine in Node v8.10.0.

[vsemozhetbyt]

I get '2017-6-15 13:03' with https://nodejs.org/download/release/v10.13.0/ as well as with https://nodejs.org/download/release/v8.10.0/

[bworline]

The above is from a repro on Windows 10 v1809 (OS Build 17763.55)

[bzoz]

Can reproduce on English Windows 10 and Ubuntu, works as expected on Polish Windows 10

[Whobeu]

Looks like this is related to #15223 (comment). Landed on this issue looking for information myself about the formatting change. Works fine in 8.15 and 10.2.1 but not in higher versions of 10 or Node 11.

[jasnell]

Appears to be working in master. Closing. Can reopen if necessary.