How to handle different timezones in nodejs

[shadizar128]

Hi, I am trying to use this module in nodejs to send emails to different customers. Each customer can have a different language and/or timezone. Do you have any examples on how to set the timezone per call? All i have now is this

function getText(lang) {
  return i18next.t('This is an example of date formatting: {value, date, short}', {lang: lang, value: new Date()});
}

[jamuhl]

you might have a look at: https://momentjs.com/timezone/

[jamuhl]

And further you might look at formatjs website - as i18next-icu used that

[shadizar128]

Using momentjs or formatjs would imply I not use this module at all, right?
Or something like:

const dateString = IIntl.DateTimeFormat('fr', options).format(new Date());
i18next.t('This is an example of date formatting: {value}', {value: dateString});

[jamuhl]

using momentjs yes

formatjs -> this module is based on the formatjs implementation

[shadizar128]

And formatjs uses Intl.DateTimeFormat as I see it but its options are not exposed in i18next-icu. I can only set:

i18next.use(ICU).init({
  i18nFormat: {
    formats: {
      datetime: {
        custom: {
          year: 'numeric',
          month: 'numeric',
          day: 'numeric',
          hour: 'numeric',
          minute: 'numeric',
          second: 'numeric',
          timeZoneName: 'long',
          timezone: 'UTC'
        }
      }
    }
  }
});

However, this is a static config, I cannot change it on a call by call basis.

[jamuhl]

Like said...it replaces the format used by i18next with the one from formatjs -> there is no mix