Learning Objective
By the end of this tutorial, you’ll know how to add/import a timezone for each lead, and use the Timezone filter in Tasks to contact leads during their working hours.
Why This Matters
Timing is one of the biggest factors in replies and successful calls. The Timezone filter helps you reach leads when they’re most likely available, so you can avoid calling late at night and prioritize the leads you can contact right now.
Prerequisites
You have leads in lemlist (imported or added manually).
Your leads include a timezone value (typically imported via CSV).
Core Lesson — Step-by-Step Workflow
Phase 1: Add timezone data to your leads
Import your leads with a timezone field so lemlist can calculate local time for each lead.
Make sure your CSV contains a timezone column (for example:
timezone).During import, map that column to the Timezone field.
Phase 2: Filter Tasks by timezone
Go to Tasks, then click Add a filter to create a filtered view based on your leads’ timezone.
In the filter picker, keep Contact selected, then choose Timezone.
Set the time range you want to work in (for example, 09:00 to 18:00). lemlist will only display tasks for leads whose local time falls within that range.
This ensures you don’t contact prospects in the middle of the night or outside their working hours.
Practical Application / Real-Life Example
If your team works leads between 09:00 and 18:00 in the prospect’s local time, set that exact range in the Timezone filter. You’ll instantly see only the tasks for leads who are currently within your ideal workday window.
Troubleshooting & Pitfalls
Issue: A lead doesn’t show up when I filter by Timezone
Root cause: The lead doesn’t have a timezone value mapped/imported.
Fix: Re-import (or update) the lead with a timezone value, confirm it’s mapped to the Timezone field, then re-apply the filter.
Issue: I can’t find the timezone filter option
Root cause: The filter is located under Contact.
Fix: Go to Tasks → Add a filter → Contact → Timezone, then choose your time range.