Member time zone inference

A system comprising:

• a machine including a memory and at least one processor;
• and
• a time zone inference module, executable by the machine, configured to:
• determine, based on member profile data associated with a particular member of an online social network service, that the particular member is located in a particular country;
• access time zone information for the particular country;
• determine, based on the time zone information, whether a single time zone or multiple time zones are associated with the particular country;
• responsive to determining that a single time zone is associated with the particular country, determine that the particular member is located in the single time zone;
• verify that the single time zone matches a time zone for a mobile device associated with the particular member, wherein the time zone is determined using geolocation information;
• and
• update the member profile data to indicate that the particular member is located in the single time zone.

A non-transitory machine-readable storage medium comprising instructions that, when executed by one or more processors of a machine, cause the machine to perform operations comprising:

• determining, based on member profile data associated with a particular member of an online social network service, that the particular member is located in a particular country;
• accessing time zone information for the particular country;
• determining, based on the time zone information, whether a single time zone or multiple time zones are associated with the particular country;
• responsive to determining that a single time zone is associated with the particular country, determining that the particular member is located in the single time zone;
• verifying that the single time zone matches a time zone for a mobile device associated with the particular member, wherein the time zone is determined using geolocation information;
• and
• updating the member profile data to indicate that the particular member is located in the single time zone.