How to Track Billable Hours Across 4 PM Tools
You're a contractor. You bill by the hour.
Your clients use different PM tools. Asana has a time tracker. Linear doesn't.
Jira has one but it's complex. ClickUp has one but it's clunky.
You could use each tool's built-in tracker.
Don't.
Here's why and what to do instead.
Why Tool Time Tracking Fails
Asana: You start a timer in Asana. You switch to Slack to check a message. You forget to stop the timer. You come back three hours later. You've logged eight hours on a two-hour task.
Jira: Time tracking is buried in settings. You have to find it every time. People skip it. You end up maintaining a manual log in a spreadsheet anyway.
Linear: No time tracking. You manually estimate after the fact. Estimates are always wrong.
ClickUp: Timer exists but doesn't sync cleanly with your invoicing system. You have to manually transfer hours.
None of these tools do time tracking well because time tracking isn't their core problem to solve.
They solve task management. Time tracking is a side feature.
You need a tool built for time tracking.
The Two Approaches
Approach 1: Active timer (Toggl, Timely)
You start a timer when you start work. You stop it when you stop.
Approach 2: Retroactive logging (a spreadsheet, notes, memory)
You remember what you did. You log hours ultimately or week.
Approach 1 is more accurate.
Approach 2 is less intrusive.
For most freelancers, Approach 1 + a dedicated timer tool is worth it.
The Tools That Work
Toggl Track ($20/month or free)
Start a timer. It runs. You stop it.
You tag which project it's for (Client A, Client B, etc.).
At the end of the week, you have a report: Client A: 18 hours, Client B: 12 hours.
You invoice based on those numbers.
It integrates loosely with some PM tools (Asana, Jira) but the integration is weak. You're mostly using Toggl standalone.
Timely ($40/month)
Similar to Toggl but fancier.
It has automatic time tracking (it can detect when you're working based on keyboard activity).
It connects better to Asana and has native Jira integration.
Clockify (Free or $7/month for business)
Like Toggl but cheaper.
Less pretty. Just as effective.
Good choice if budget is tight.
Harvest ($12-99/month depending on users)
More advanced. Includes invoicing.
Overkill for a solo freelancer. Good for agencies.
The Simple Setup
You're using Toggl. Here's the workflow.
Step 1: Create a project for each client in Toggl.
Client A. Client B. Client C. Internal.
Step 2: Start the timer when you start work.
You open Asana to work on Client A's task.
You click the Toggl button. You select "Client A."
The timer starts.
Step 3: Stop the timer when you switch tasks or take a break.
You finish the Asana task. You stop the timer in Toggl.
Toggl logs: Client A, 45 minutes, 9:00 a.m. - 9:45 a.m.
Step 4: Ultimately, glance at your Toggl log.
You did:
- Client A: 3 hours
- Client B: 2 hours
- Internal: 30 minutes
That's your day.
Step 5: At the end of the week, generate a report.
Toggl has a reports view. You can see:
- Client A: 18 hours
- Client B: 12 hours
- Client C: 8 hours
You invoice Client A for 18 hours. Done.
The Hybrid Approach (Best)
You don't need to timer every single hour.
But you need real data for billable work.
Here's what actually works:
Billable time: Use Toggl. Active timer. Real data.
Admin time: Estimate ultimately. "Spent 30 minutes on Slack and email today." Log it.
Internal time: Log it once a week. "Spent 4 hours on personal projects this week."
You're getting 90% accuracy with 50% of the overhead.
Why This Matters for Multiple Tools
When you work across Asana, Linear, and Jira, context-switching is expensive.
You start work in Linear at 9 a.m.
You switch to Asana at 9:45 a.m.
How do you know how much time you spent in Linear?
With Toggl, you just look at the timer log.
Without Toggl, you're guessing. "I worked in Linear for 45 minutes?"
Guesses compound over a month. You'll either undercharge or overcharge.
With real data, you invoice what you actually did.
The Asana Integration (How It Works)
Toggl integrates with Asana.
You open an Asana task. You see a Toggl button in the sidebar.
You click it. The timer starts. It tags the task automatically.
When you stop the timer, Toggl logs: 45 minutes on this specific task.
This is useful because now you have time per task.
At the end of the project, you can say: "Landing page design took 8 hours. Homepage took 12 hours."
You're tracking time and linking it to deliverables.
But: Jira integration is weaker. Linear has no native integration.
So you're still managing time across tools. Toggl is your record keeper.
Common Mistakes
Using the tool's timer for everything.
You use Asana's timer for Asana work. Toggl for other work. Jira's timer for Jira work.
Now you have three time sources. You're lost.
Pick one tool. Use it for everything.
Not categorizing time.
You log 40 hours. That's all you know.
You should log: 15 hours for Client A, 10 hours for Client B, 8 hours for Client C, 7 hours for admin.
Your Toggl categories should match your invoice categories.
Forgetting to stop the timer.
You start a timer and forget to stop it.
Eight hours later, you log eight hours for a two-hour task.
Get a Toggl notification after 30 minutes of inactivity: "Still timing?" Yes or no.
You catch forgetfulness.
Logging time after the fact without reference.
You didn't timer. It's Friday. You remember:
"I think I worked 10 hours on Client A this week."
You guess.
Guesses are bad for invoicing.
If you're not using an active timer, at least maintain a daily log.
End of day: "Today: 2 hours Client A, 1.5 hours Client B, 30 min admin."
This is real data.
The Invoicing Integration
At the end of the month, Toggl gives you a report.
You export it to CSV.
You have the data for your invoice.
Some freelancers use Harvest or Wave (invoicing platforms) that integrate with Toggl directly.
You log time in Toggl. You generate the invoice in Harvest. Done.
For a solo freelancer with 3 clients, Toggl + a manual invoice is enough.
FAQ
Is $20/month for Toggl worth it for time tracking?
If you bill at $100/hour and track 20 hours a week, you invoice $2,000/week.
$20/month is 0.5% of your monthly revenue.
If Toggl helps you invoice 5% more accurately (which it will), it pays for itself.
Yes, it's worth it.
What if a client requires time tracking in their tool?
Use their tool's timer. But also use Toggl.
The two track the same time. You have backup data.
Should I timer personal projects?
Only if you invoice for them. If you're working on a passion project, you don't need to timer.
If you're doing client work, timer it.
What if I forget to timer and realize hours later?
Look at your calendar. You have a meeting at 10 a.m., worked until noon, another meeting at 2 p.m. You worked two hours between meetings.
Log it retroactively.
It's not perfect, but it's better than guessing.
Can I use Toggl data to improve my estimates?
Yes. After three months, you know: "Landing pages take 8 hours on average."
Use this data to estimate better. "This landing page looks like 8 hours. I'll quote for 10 to be safe."
The Billing Angle
You bill at $100/hour. You work 20 hours across four tools.
Real time tracked: 20 hours. Invoice: $2,000.
Estimated time (without Toggl): You guess 18 hours. Invoice: $1,800.
You lost $200 on a single week.
Over a year, that's $10k.
Toggl costs $240/year.
ROI is 40x.
That's a no-brainer.
The Spreadsheet Alternative (If You're Cheap)
You don't want to pay for Toggl.
Create a Google Sheet.
| Date | Client | Task | Start | End | Hours |
|---|---|---|---|---|---|
| 1/30 | A | Landing page | 9:00 | 10:30 | 1.5 |
| 1/30 | A | Landing page | 11:00 | 12:00 | 1.0 |
| 1/30 | B | Code review | 2:00 | 3:30 | 1.5 |
You manually track start and end time.
Google Sheets calculates the hours.
By Friday, you have your weekly total.
It's annoying. It's manual. But it's free and it works.
Most people stick with this for three weeks, then switch to Toggl.
The friction of manual logging drives them to automation.
Should I log breaks?
No. You're logging work time. If you take a lunch break, you stop the timer. You don't log it.
How detailed should my categories be?
Client-level minimum. If you have multiple projects per client, add project level.
Don't go deeper. You'll stop maintaining it.
What if my client questions my hours?
You have Toggl data. Show them. "Here's my daily log. I tracked 18 hours across these tasks." You're defensible.
Can I use this for non-billable time?
Yes. If you're an agency owner, you might track "business development, 5 hours" or "admin, 3 hours." Use Toggl for all time. Just categorize it.