request the current time based on the ip of the request. note: this is a "best guess" obtained from open-source data.

{
  "required": [
    "abbreviation",
    "client_ip",
    "datetime",
    "day_of_week",
    "day_of_year",
    "dst",
    "dst_offset",
    "timezone",
    "unixtime",
    "utc_datetime",
    "utc_offset",
    "week_number"
  ],
  "properties": {
    "abbreviation": {
      "type": "string",
      "description": "the abbreviated name of the timezone"
    },
    "client_ip": {
      "type": "string",
      "description": "the IP of the client making the request"
    },
    "datetime": {
      "type": "string",
      "description": "an ISO8601-valid string representing the current, local date/time"
    },
    "day_of_week": {
      "type": "integer",
      "description": "current day number of the week, where sunday is 0"
    },
    "day_of_year": {
      "type": "integer",
      "description": "ordinal date of the current year"
    },
    "dst": {
      "type": "boolean",
      "description": "flag indicating whether the local time is in daylight savings"
    },
    "dst_from": {
      "type": "string",
      "description": "an ISO8601-valid string representing the datetime when daylight savings started for this timezone"
    },
    "dst_offset": {
      "type": "integer",
      "description": "the difference in seconds between the current local time and daylight saving time for the location"
    },
    "dst_until": {
      "type": "string",
      "description": "an ISO8601-valid string representing the datetime when daylight savings will end for this timezone"
    },
    "raw_offset": {
      "type": "integer",
      "description": "the difference in seconds between the current local time and the time in UTC, excluding any daylight saving difference (see dst_offset)"
    },
    "timezone": {
      "type": "string",
      "description": "timezone in `Area/Location` or `Area/Location/Region` format"
    },
    "unixtime": {
      "type": "integer",
      "description": "number of seconds since the Epoch"
    },
    "utc_datetime": {
      "type": "string",
      "description": "an ISO8601-valid string representing the current date/time in UTC"
    },
    "utc_offset": {
      "type": "string",
      "description": "an ISO8601-valid string representing the offset from UTC"
    },
    "week_number": {
      "type": "integer",
      "description": "the current week number"
    }
  }
}