# Calling Windows and Time Zones for AI Campaigns

> How to set calling windows and time zones for AI voice campaigns: sensible hours, RBI hours for collections and the time-zone mistakes to avoid.

Source: https://edesy.in/blog/calling-window-time-zones-ai-campaigns-2026

**A calling window decides both how many people answer and how your brand is perceived.** Set it in the
recipient's time zone, keep it to sensible daytime hours, and for collections stay inside RBI's permitted
hours. Every Edesy campaign has a daily window with a start, end and time zone; calls pause outside it and
resume the next day. The other half of the lesson is about **dates and times inside calls**: a missing time
zone on one hospital branch once made the agent read out wrong appointment times.

> **Set up a campaign window:** [Try Edesy free](https://voice-agent.edesy.in/?utm_source=edesy.in&utm_medium=blog&utm_campaign=calling-window-time-zones-ai-campaigns-2026) — Rs 50 free credit, no demo needed.

## Sensible windows by audience

| Audience | Typical window (IST) |
|---|---|
| Consumers (reminders, confirmations) | 10:00-19:00 |
| Borrowers (recovery calls) | Within 08:00-19:00, per RBI ([rules](https://edesy.in/blog/rbi-guidelines-ai-collections-voice)) |
| Business contacts | 10:00-13:00 and 14:30-18:00 |
| Farmers | Early morning or evening, outside field hours ([agri calls](https://edesy.in/blog/farmer-advisory-agri-input-ai-calls-2026)) |
| School parents | 10:00-19:00, avoiding school drop and pickup times |

Test two windows on your own list; answer rates differ by audience. See
[why half your campaign calls fail](https://edesy.in/blog/why-campaign-calls-fail-retries-dnd-list-hygiene-2026).

## Time zones inside the call

The window controls **when** calls happen. Time zones also matter for **what the agent says**:

- **Appointment and slot times** from calendars and booking systems.
- **Due dates and deadlines** near midnight.
- **Multi-city businesses** with branches configured separately.

Checklist:

1. Set the time zone on **every location, calendar and branch**.
2. Test a booking at each location and listen to the time read back.
3. Pass dates to the agent in a spoken-friendly format ("5 October, shaam 5 baje").

This is one of the configuration gaps that shows up in the first days of a pilot; see
[the first week of a new AI voice agent](https://edesy.in/blog/first-week-new-ai-voice-agent-monitoring-2026).

## International lists

Calling customers abroad (NRIs, export buyers)? Set the window in **their** time zone, and split lists by
region if they span several.

## Retries respect the window

Retries for no-answer and busy only run inside the window, so a late-evening retry rolls to the next
morning automatically.

## Try it

[Create a free account](https://voice-agent.edesy.in/?utm_source=edesy.in&utm_medium=blog&utm_campaign=calling-window-time-zones-ai-campaigns-2026),
set a campaign window with your time zone, and book a test appointment to hear the time read back.

## Frequently Asked Questions

### What calling hours should an AI campaign use?

Reasonable daytime hours for your audience, typically 10 am to 7 pm for consumers. Lenders and collection agencies must stay within RBI's 8 am to 7 pm window for recovery calls.

### Can I set a calling window with a time zone?

Yes. Edesy campaigns have a daily calling window with a start time, end time and time zone. Calls pause outside the window and resume the next day.

### What goes wrong with time zones?

If a location or calendar has no time zone set, slot times can be read out wrong. In one hospital deployment, a branch missing its time zone made the agent read wrong appointment times until it was fixed.

### What about international calls?

Set the window in the recipient's time zone, not yours. Split lists by country or region if they span time zones.

### Which times get the most answers?

It depends on the audience. Business contacts answer mid-morning and mid-afternoon; many consumers answer better in the early evening. Test two windows on your own list.