The Scenario
Your customer success team switched to automated check-in emails six months ago — 9 AM local time, every Monday. The system that sends them needs an IANA timezone for each client. You have 1,500 client IP addresses in a Google Sheet. Nobody attached timezones when the records were created, and the sending system throws an error on blank timezone fields.
This landed on your plate because you manage the CS ops tooling. The weekly batch runs Sunday night. It's Thursday.
The bad version:
- Export the 1,500 IPs to a CSV.
- Call the IPinfo API from a notebook: authenticate, loop, extract the timezone field, write to a new CSV.
- Re-import, align columns with the existing client sheet, fill the timezone column.
- Realize three clients have IP addresses that returned null — decide what default timezone to assign and handle the edge case.
The actual complexity of this task is low. The tooling friction is what makes it feel like an afternoon.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent inside your Google Sheet that reads your client data and calls IPinfo to fetch the IANA timezone for every IP in one operation.
Paste this into the SheetXAI sidebar:
For each IP in column A, use IPinfo to look up the IANA timezone and write it to column B.
What You Get
- Column B: IANA timezone string for each client IP (e.g., "America/New_York", "Europe/Berlin", "Asia/Singapore")
- Rows where IPinfo returns no timezone get an empty cell — not an error value — so you can identify which clients need a manual fallback
- All 1,500 rows completed in one operation, no re-import step
What If the Data Is Not Quite Ready
I need a count of clients per timezone to understand the global distribution
Fetch the IANA timezone for every IP in column A using IPinfo and write to column B. Then write a summary table below the data counting clients per timezone, sorted by count descending.
Some clients have no IP on record and I need a fallback timezone
Look up IANA timezones for all IPs in column A using IPinfo and write to column B. For any row where column A is blank or IPinfo returns no data, write the default timezone "America/New_York" to column B instead.
The sending system needs UTC offset, not timezone name
Look up IANA timezones for all IPs in column A via IPinfo and write to column B. Then convert each IANA timezone to a UTC offset (e.g., "America/New_York" → "UTC-5" in winter or "UTC-4" in summer based on current date) and write the UTC offset to column C.
Full ops pipeline: enrich, apply fallback, validate, and flag unresolved rows
Column A has 1,500 client IPs. Some cells are blank. Fetch the IANA timezone for each non-blank IP using IPinfo and write to column B. For blank IPs, write "America/New_York" as the fallback timezone. Flag any row where IPinfo returned no data despite a valid IP in column C as "Manual Review." Write a summary count of timezones by region (Americas, Europe, Asia-Pacific, Other) below the data.
The fallback and the enrichment in one pass, so the Sunday batch has clean data going in.
Try It
Get the 7-day free trial of SheetXAI and open any Google Sheet with a list of client or user IP addresses, then ask it to pull IANA timezone data from IPinfo and prepare the column for your sending system. See also mobile carrier identification or postal code lookup for regional analysis. Hub: IPinfo + Google Sheets.