Asana’s native time tracking feature allows you to estimate the time needed to complete a task, as well as record the actual time spent.

TimeTrackingEntry

Property	Type	Description
`gid`	string	Globally unique identifier of the resource, as a string.
`resource_type`	string	The base type of this resource.
`duration_minutes`	integer	Time in minutes tracked by the entry.
`entered_on`	string (date)	The day that this entry is logged on.
`attributable_to`	object	The attributable to project specifies which project's budget a time entry should be counted toward, if the task belongs to more than one project. If it only belongs to one project, it should be that project.
`attributable_to.gid`	string	Globally unique identifier of the resource, as a string.
`attributable_to.resource_type`	string	The base type of this resource.
`attributable_to.name`	string	Name of the project. This is generally a short sentence fragment that fits on a line in the UI for maximum readability. However, it can be longer.
`created_by`	object	A user object represents an account in Asana that can be given access to various workspaces, projects, and tasks.
`created_by.gid`	string	Globally unique identifier of the resource, as a string.
`created_by.resource_type`	string	The base type of this resource.
`created_by.name`	string	Read-only except when same user as requester. The user's name.
`categories[]`	[object]	The categories linked to this time tracking entry.
`categories[].gid`	string	Globally unique identifier of the resource, as a string.
`categories[].resource_type`	string	The base type of this resource.
`categories[].name`	string	The name of the time tracking category.
`categories[].color`	string	The color associated with this category for display purposes. Click to show all enum values `aqua` `blue` `blue-green` `cool-gray` `green` `hot-pink` `indigo` `magenta` `none` `orange` `pink` `purple` `red` `yellow` `yellow-green` `yellow-orange`
`task`	object	Full object requires scope: `tasks:read` The task is the basic object around which many operations in Asana are centered.
`task.gid`	string	Globally unique identifier of the resource, as a string.
`task.resource_type`	string	The base type of this resource.
`task.name`	string	The name of the task.
`task.resource_subtype`	string	The subtype of this resource. Different subtypes retain many of the same fields and behavior, but may render differently in Asana or represent resources with different semantic meaning. The resource_subtype `milestone` represent a single moment in time. This means tasks with this subtype cannot have a start_date. Click to show all enum values `approval` `custom` `default_task` `milestone`
`task.created_by`	object	Opt In. A user object represents an account in Asana that can be given access to various workspaces, projects, and tasks.
`task.created_by.gid`	string	Globally unique identifier of the resource.
`task.created_by.resource_type`	string	The type of resource.
`created_at`	string (date-time)	The time at which this resource was created.
`approval_status`	string	Optional. The current approval status of the entry. Click to show all enum values `APPROVED` `DRAFT` `REJECTED` `SUBMITTED`
`billable_status`	string	Optional. The current billable status of the entry. Click to show all enum values `billable` `nonBillable` `notApplicable`
`description`	string	Optional. The description of the entry.

Example JSON for TimeTrackingEntry:

{
  "gid": "12345",
  "resource_type": "time_tracking_entry",
  "duration_minutes": 12,
  "entered_on": "2015-03-14",
  "attributable_to": {
    "gid": "12345",
    "resource_type": "project",
    "name": "Stuff to buy"
  },
  "created_by": {
    "gid": "12345",
    "resource_type": "user",
    "name": "Greg Sanchez"
  },
  "categories": [
    {
      "gid": "12345",
      "resource_type": "time_tracking_category",
      "name": "Development",
      "color": "blue"
    }
  ],
  "task": {
    "gid": "12345",
    "resource_type": "task",
    "name": "Bug Task",
    "resource_subtype": "default_task",
    "created_by": {
      "gid": "1111",
      "resource_type": "user"
    }
  },
  "created_at": "2012-02-22T02:06:58.147Z",
  "approval_status": "DRAFT",
  "billable_status": "billable",
  "description": "My description of work done on this entry"
}