Geo.utcoffset

The local time's offset from UTC in minutes, as a signed integer, such as -300 for US Eastern Standard Time or 330 for India. Added in OpenRTB 2.3.

CurrentintegerOptionalSince 2.3

Field facts

Path
device.geo.utcoffset, user.geo.utcoffset
Object
Geo
Type
integer
Requirement
Optional
Added
OpenRTB 2.3
Spec section
3.2.19

How it is used

Buyers use it for dayparting when they cannot resolve a time zone from the location. Daylight saving changes the value, so compute it at request time.

Example

Where the field sits in a payload, with everything else left out:

{
  "id": "req-1",
  "device": {
    "geo": {
      "utcoffset": -300
    }
  }
}

Common mistakes

  • Sending hours (-5) instead of minutes (-300).

Version history

Added in OpenRTB 2.3, and present in the latest snapshot. The table shows how each version's spec text types the field.

VersionsType in the specRequiredDeprecated
2.3 to 2.3.1integerNoNo
2.4integerNoNo
2.5 to 2.6-202606integerNoNo

Related fields

Other Geo fields