Every IP range, resolved to its timezone.
An IANA timezone for IPv4 and IPv6 ranges, published only where it's certain. A range that could fall in more than one zone is left out rather than published wrong.
Schema at a glance.
See documentation →The database's schema and metadata are documented carefully. It is published as CSVGZ and MMDB.
| start_ip | end_ip | timezone | country |
|---|---|---|---|
| 1.0.16.0 | 1.0.31.255 | Asia/Tokyo | JP |
| 5.196.42.160 | 5.196.42.191 | Europe/Warsaw | PL |
| 17.30.12.0 | 17.30.13.255 | Europe/Berlin | DE |
| 23.192.190.0 | 23.192.190.255 | America/Sao_Paulo | BR |
| 2a02:26f7:f7c0:e121:: | 2a02:26f7:f7c0:e121:ffff:ffff:ffff:ffff | America/Bogota | CO |
Downloading it from code.
Database API reference →One call gets you the current IP Timezone build. Every official client wraps it three ways: straight to disk, a time-limited link you hand to your own runner, or bytes in memory. A file written to disk lands only once the whole transfer has arrived, and checksums() returns the published digests to verify it against.
download()downloadUrl()downloadBytes()metadata()checksums()import osfrom internetdata import InternetDataclient = InternetData(os.environ["INTERNETDATA_API_KEY"])# what is in today's build, without moving the filemeta = client.database.metadata("ip_timezone_v1")client.database.download("ip_timezone_v1", "mmdb", "./ip_timezone_v1.mmdb")sums = client.database.checksums("ip_timezone_v1", "mmdb")print(meta.updated, meta.entries, sums["sha256"])
Getting your hands on it.
The file is the product. Teams join IP Timezone against traffic they already log, inside their own infrastructure, and never send an address anywhere to get an answer.
Scheduling and delivery
Send a notification, a report or a campaign at the right local hour.
Log and analytics context
Read activity timestamps against the visitor's own clock instead of your server's.
An official client for every major language.
All SDKs on GitHub →Twelve official clients for the languages you ship in, each wrapping the database endpoints — list what you are licensed for, poll a build, follow the download redirect, verify what landed. Install commands are in the docs.
No loose ends.
How often does this database rebuild?
Daily. The metadata call answers when the current build landed and how many rows it holds, before you fetch it.
What is in a row?
One range: a start and an end address, both inclusive, its IANA timezone and its country. IPv4 and IPv6 are in the same file.
Why are some ranges missing?
A range is published only where its timezone is certain. One that could fall in more than one zone is left out rather than guessed, so this file holds fewer ranges than IP Geolocation.
Which formats does a build ship in?
Gzipped CSV and MMDB, both cut from the same build. The schema section above names them.
Test the real build first.
An evaluation license puts a full current build in your hands — every row, every column, no sampling — so you can measure it against your own traffic before anyone talks about terms.