Guides
Get time tracking right.
Short, practical guides for people who bill by the hour, the people who run their teams, and the AI agents working next to them.
What is an agent harness
The harness is everything around the model: context, tools, memory, checks and guardrails. Why it decides how well AI agents do real work.
The value of a custom harness
Everyone rents the same models. What sets your agents apart is the harness you build around them: what it gains you, why it's an asset, and how to prove it.
Billing harness-powered agents
Pricing models for agent work on a company-specific harness: setup fees, retainers, usage with a markup and per-outcome pricing, and what to record.
Billing AI agent work
Assign agents to tasks, record their time and model cost next to people’s hours, report them separately and lock invoiced entries.
Billable hours explained
What counts as billable hours, how to track them accurately, and how to turn them into invoices without leaks.
How to track billable hours
A practical five-step method to track billable hours accurately for freelancers and teams: set up, track live, fill gaps, review and bill.
Billable vs non-billable
The difference between billable and non-billable hours, with examples, and why tracking non-billable time matters too.
Calculate billable hours
How to calculate billable hours: the formulas for billable hours, billable amount and billable share, with worked examples for each one.
Timesheet template
Download a free weekly timesheet template with projects, days and totals. Works in Excel, Numbers and Google Sheets.
Fill out a timesheet
Step-by-step: how to fill out a timesheet accurately, from projects and tasks to notes, plus the common mistakes to avoid before you submit.
Weekly timesheets
How to run a weekly timesheet process that people actually follow: a simple weekly rhythm with deadlines, approvals and locking.
Decimal hours
What decimal hours are, how to convert between hours:minutes and decimals, and a quick reference table you can use on any timesheet.
Agency utilization playbook
Define utilization the way finance accepts it, run a weekly submit, approve and lock rhythm, and pair it with retainer budget burn to avoid overruns.
Time tracking best practices
Time tracking best practices: eight practical rules that make time tracking accurate and painless for teams, managers and clients alike.
Timesheet approval process
Set up a simple timesheet approval workflow for your team: who should approve, when to do it, and how to handle corrections after approval.
Move from Harvest
Move your team from Harvest to Hourtick: what to export from Harvest, how to recreate clients and projects fast, and how to keep your past hours on record.
Track your first hour in a minute.
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