Javascript date format like ISO but local

No library required! For some Date object, e.g. t = new Date()

• convert the local time zone offset from minutes to milliseconds

  z = t.getTimezoneOffset() * 60 * 1000

• subtract the offset from t

  tLocal = t-z

• create shifted Date object

  tLocal = new Date(tLocal)

• convert to ISO format string

  iso = tLocal.toISOString()

• drop the milliseconds and zone

  iso = iso.split(".")[0]

• replace the ugly ‘T’ with a space

  iso = iso.replace('T', ' ')

Result is a nice ISO-ish format date-time string like “2018-08-01 22:45:50” in the local time zone.