Sum clocked times in a task

Does this feature exist in Emacs orgmode core?

N/A

Orgmode link

No response

Feature value

It's nice to be able to see the clocked time of a task. Currently the sums per task are displayed in the Agenda view if the clock mode is active. But if a task spans days/weeks/months and has many clocked times it's difficult to sum them all up.

I used Gemini to create this function and integrated it into my functions.lua and it works great 🚀

Here's the function:

local function parse_duration_to_seconds(duration_str)
    local hours, minutes = duration_str:match("^(%d+):(%d+)$")
    if not hours or not minutes then return 0 end
    local h = tonumber(hours)
    local m = tonumber(minutes)
    return (h * 3600) + (m * 60)
end

local function format_seconds_to_duration(total_seconds)
    local total_minutes = math.floor(total_seconds / 60)
    local hours = math.floor(total_minutes / 60)
    local minutes = total_minutes % 60
    return string.format("%d:%02d", hours, minutes)
end

function ClockSumSelectedLines()
    local total_seconds = 0
    local count = 0

    local start_line = vim.fn.line("'<")
    local end_line = vim.fn.line("'>")

    -- Safety check for selection or single line
    if start_line > end_line then
        start_line = vim.fn.line(".")
        end_line = vim.fn.line(".")
    end

    -- Get the content of the selected lines (start is 1-indexed, so we use start_line - 1)
    local lines = vim.api.nvim_buf_get_lines(0, start_line - 1, end_line, false)

    -- 1. Determine Indent from the first line
    local first_line = lines[1] or ""
    -- Lua pattern: ^(%s*) captures all leading whitespace at the start of the line.
    local indent = first_line:match("^(%s*)") or ""

    -- 2. Calculate Sum
    for _, line in ipairs(lines) do
        local duration = line:match("=> (%d+:%d+)$")

        if duration then
            total_seconds = total_seconds + parse_duration_to_seconds(duration)
            count = count + 1
        end
    end

    if count == 0 then
        print("No valid clock lines found in selection.")
        return
    end

    local total_duration_str = format_seconds_to_duration(total_seconds)

    -- 3. Prepend Indent to the Result Row
    local result_row_content = string.format("TOTAL_CLOCK_SUM: %s (from %d rows)", total_duration_str, count)
    local result_row = indent .. result_row_content -- Add the captured indent here

    -- Insert the result row below the selection.
    vim.api.nvim_buf_set_lines(0, end_line, end_line, true, {result_row})

    -- Move the cursor to the newly inserted line
    vim.api.nvim_win_set_cursor(0, {end_line + 1, #indent + 1}) -- Move cursor past the indent

    print(string.format("Clock sum calculated: %s", total_duration_str))
end

vim.api.nvim_create_user_command(
  'ClockSum',
  ClockSumSelectedLines,
  {
    range = true,
    desc = 'Calculates total time from CLOCK rows and inserts the total below.'
  }
)

vim.keymap.set(
  'v', '<leader>cs',
  ":'<,'>ClockSum<CR>",
  {noremap = true, silent = true, desc = 'Calculate Clock Sum for Selection'}
)

Additional context

No response

No repository files or tests are named in the issue. Start by locating the existing clock mode and Agenda rendering entry points, then compare their behavior with the supplied Lua function. Confirm where a task-level total should appear and add coverage for multiple clock entries, including totals spanning more than 24 hours.