Go to /timesheets/. Use the arrow to navigate to a past week. Open the DevTools console, paste this script, and press "enter". The script collects billable and non-billable values, advances to the next week, and repeats until it reaches the current week. Expect an execution time of 5 seconds per week.

exportTimesheets_RL.js

// ─────────────────────────────────────────────────────────────────
//  Timesheet exporter – with billable/non-billable split support
// ─────────────────────────────────────────────────────────────────

// Checks whether the billable/non-billable split toggle is present and
// clickable, activates it, then waits for the DOM to re-render.
async function enableBillableSplit() {
  const splitButton = document.querySelector(
    '[data-cy="timesheets.buttons.split-billable-button"]:has([class*="secondary-bar__BillableNonSplitIcon"])'
  );

  if (!splitButton) {
    console.log('Split-billable button not found – skipping (single-mode export).');
    return;
  }

  if (splitButton.disabled) {
    console.log('Split-billable button is disabled – skipping.');
    return;
  }

  console.log('Clicking "Split billable" button...');
  splitButton.click();

  await new Promise(resolve => setTimeout(resolve, 1500));
  console.log('Billable/non-billable split enabled.');
}

// ─────────────────────────────────────────────────────────────────

// Iterates through all available weeks starting from the currently displayed
// one, collects each week's entries, and returns the full dataset.
// Stops when the "this week" button disappears (last week reached)
// or when any navigation step fails.
async function exportAllTimesheetData() {
  const allData = [];
  let weekCount = 0;

  console.log('Starting timesheet data export...');

  while (true) {
    weekCount++;
    console.log(`Processing week ${weekCount}...`);

    const weekData = exportCurrentWeekData();
    allData.push(...weekData);
    console.log(`Found ${weekData.length} entries for this week.`);

    // ── Stop condition ──────────────────────────────────────────
    // The absence of the "this week" button marks the end of the export
    const thisWeekButton = document.querySelector(
      '[data-cy="timesheets.buttons.this_week_button"]'
    );
    if (thisWeekButton == null) {
      console.log('"This week" button absent – this is the last week. Stopping.');
      break;
    }

    // ── Navigate to next week ───────────────────────────────────
    const nextWeekButton = document.querySelector(
      '[class*=week-range-picker__Wrapper] button:nth-of-type(2)'
    );

    if (!nextWeekButton) {
      console.log('Next week button not found. Stopping.');
      break;
    }

    if (nextWeekButton.disabled) {
      console.log('Next week button is disabled. Stopping.');
      break;
    }

    nextWeekButton.click();
    console.log('Clicked next week button, waiting 2 seconds...');
    await new Promise(resolve => setTimeout(resolve, 2000));

    // Sanity-check: date range still visible
    const calendarButton = document.querySelector(
      '[data-cy-button="week-range-picker-trigger"]'
    );
    if (!calendarButton || !calendarButton.textContent.trim()) {
      console.log('Date range not found after navigation. Stopping.');
      break;
    }
  }

  console.log(
    `Export complete! Processed ${weekCount} week(s) with ${allData.length} total entries.`
  );
  return allData;
}

// ─────────────────────────────────────────────────────────────────

// Reads the timesheet table for the currently displayed week and returns
// one entry per (row × day): each entry contains the date, project, task,
// billable and non-billable hours, and week metadata.
// Day cells with no logged hours are silently skipped.
//
// ► RULE: any row whose title starts with "Non-project activity" is treated
//   as entirely non-billable, regardless of how the split toggle classified it.
function exportCurrentWeekData() {
  const exportedData = [];

  const { dateRange, isoDate } = getDateInfo();
  if (!dateRange || !isoDate) {
    console.warn('Could not read date info for the current week. Skipping.');
    return [];
  }

  const workingDays  = getWorkingDaysCount();
  const weekCapacity = getWeekCapacity(workingDays);

  const rows = document.querySelectorAll(
    '[data-cy-table="my-timesheet"] .ant-table-tbody tr.ant-table-row:not([aria-hidden])'
  );

  rows.forEach(row => {
    // ── Title: project + task ───────────────────────────────────
    // Each row has two [data-cy="timesheet.primary.name"] elements:
    //   [0] → Project name (column "Projects")
    //   [1] → Task name    (column "Work")
    const nameCells   = row.querySelectorAll('[data-cy="timesheet.primary.name"]');
    const projectName = nameCells[0] ? nameCells[0].textContent.trim() : '';
    const taskName    = nameCells[1] ? nameCells[1].textContent.trim() : '';
    const title       = taskName ? `${projectName} - ${taskName}` : projectName;

    // ── One entry per day cell ──────────────────────────────────
    // The data-time-cell attribute already holds the ISO date ("YYYY-MM-DD")
    // for that column, so no further date parsing is needed here.
    row.querySelectorAll('[data-time-cell]').forEach(cellWrapper => {
      const date = cellWrapper.getAttribute('data-time-cell');

      const { billable, nonBillable } = parseTimeCell(cellWrapper);
      let billableHours    = billable;
      let nonBillableHours = nonBillable;

      // ── Non-project activity override ─────────────────────────
      // Any entry whose title starts with "Non-project activity" must be
      // recorded as entirely non-billable, even if the split toggle assigned
      // some hours to the billable bucket.
      if (title.startsWith('Non-project activity')) {
        nonBillableHours += billableHours;
        billableHours     = 0;
      }

      // Skip day cells with no logged hours
      if (billableHours > 0 || nonBillableHours > 0) {
        exportedData.push({
          dateRange,
          weekStartDate: isoDate,
          date,
          title,
          billableHours,
          nonBillableHours,
          workingDays,
          weekCapacity
        });
      }
    });
  });

  return exportedData;
}

// ─────────────────────────────────────────────────────────────────

/**
 * Extracts billable and non-billable hours from a single day cell wrapper
 * ([data-time-cell] element).
 *
 * Split mode (after clicking the toggle):
 *   Active input (not .ant-input-disabled)  → billable hours
 *   Disabled input (.ant-input-disabled)    → non-billable hours
 *
 * Single mode (toggle not available / not clicked):
 *   Only one active input → billable, non-billable = 0.
 */
function parseTimeCell(cellWrapper) {
  const billableInput    = cellWrapper.querySelector(
    '[class*="time-entry-cell"] input:not(.ant-input-disabled)'
  );
  const nonBillableInput = cellWrapper.querySelector(
    '[class*="time-entry-cell"] input.ant-input-disabled'
  );

  return {
    billable:    billableInput    ? convertTimeToDecimal(billableInput.value)    : 0,
    nonBillable: nonBillableInput ? convertTimeToDecimal(nonBillableInput.value) : 0
  };
}

// ─────────────────────────────────────────────────────────────────

// Reads the week range picker in the UI to extract both the human-readable
// date range string and the week start date in ISO 8601 format.
function getDateInfo() {
  const calendarButton = document.querySelector(
    '[data-cy-button="week-range-picker-trigger"]'
  );
  if (!calendarButton) return { dateRange: '', isoDate: '' };

  let dateRange = '';
  calendarButton.querySelectorAll('span').forEach(span => {
    const text = span.textContent.trim();
    if (/\d{1,2}\s+[A-Za-z]{3}\s+\d{2}\s+-/.test(text)) {
      dateRange = text;
    }
  });

  if (!dateRange) dateRange = calendarButton.textContent.trim();

  return { dateRange, isoDate: parseDateRangeToISO(dateRange) };
}

// ─────────────────────────────────────────────────────────────────

// Counts non-weekend column headers in the timesheet table to determine
// the number of working days in the currently displayed week.
function getWorkingDaysCount() {
  // Header: [0] Projects | [1] Work | [2..8] Mon–Sun | [9] Total | [10] actions
  // Weekend columns carry the class "weekend-cell".
  const ths = document.querySelectorAll(
    '[data-cy-table="my-timesheet"] thead th'
  );
  let workingDays = 0;
  for (let i = 2; i < ths.length - 2; i++) {
    if (ths[i] && !ths[i].classList.contains('weekend-cell')) workingDays++;
  }
  return workingDays;
}

// Computes the theoretical weekly capacity in hours, assuming 7 h per working
// day. Adjust the multiplier to match your contract if needed.
function getWeekCapacity(workingDays) {
  return workingDays * 7;
}

// ─────────────────────────────────────────────────────────────────

// Parses a human-readable date range string into an ISO 8601 date (YYYY-MM-DD)
// representing the first day of the week. Supports two formats:
//   - New : "13 Apr 26 - 19 Apr 26"
//   - Old : "Feb 02 - Feb 08, 2025"
function parseDateRangeToISO(dateRange) {
  if (!dateRange) return '';

  const monthMap = {
    Jan:'01', Feb:'02', Mar:'03', Apr:'04', May:'05', Jun:'06',
    Jul:'07', Aug:'08', Sep:'09', Oct:'10', Nov:'11', Dec:'12'
  };

  try {
    const newMatch = dateRange.match(/^(\d{1,2})\s+([A-Za-z]{3})\s+(\d{2})\s+-/);
    if (newMatch) {
      const [, day, month, year2] = newMatch;
      const monthNum = monthMap[month];
      if (!monthNum) return '';
      return `${'20' + year2}-${monthNum}-${day.padStart(2, '0')}`;
    }

    const oldMatch = dateRange.match(/^([A-Za-z]{3})\s+(\d{1,2})\s+-.*?,\s+(\d{4})$/);
    if (oldMatch) {
      const [, month, day, year] = oldMatch;
      const monthNum = monthMap[month];
      if (!monthNum) return '';
      return `${year}-${monthNum}-${day.padStart(2, '0')}`;
    }

    return '';
  } catch (error) {
    console.error('Error parsing date range:', error);
    return '';
  }
}

// ─────────────────────────────────────────────────────────────────

// Converts a time string such as "2h 30m" or "45m" into a decimal number
// of hours (e.g. 2.5). Returns 0 for any empty, null, or zero-value input.
function convertTimeToDecimal(timeString) {
  if (
    !timeString     ||
    timeString === '—'      ||
    timeString === '--'     ||
    timeString === '0h 0m'  ||
    timeString === '0m'
  ) {
    return 0;
  }

  const hoursMatch   = timeString.match(/(\d+)h/);
  const minutesMatch = timeString.match(/(\d+)m/);

  const hours   = hoursMatch   ? parseInt(hoursMatch[1],   10) : 0;
  const minutes = minutesMatch ? parseInt(minutesMatch[1], 10) : 0;

  return hours + minutes / 60;
}

// ─────────────────────────────────────────────────────────────────

// Serialises the entry list into a TSV string (tab-separated values) with a
// header row. Tabs within text fields are replaced with spaces to preserve
// the format integrity.
function exportAsTSV(data) {
  const headers = [
    'Date Range', 'Week Start Date', 'Date', 'Title',
    'Billable Hours', 'Non-Billable Hours', 'Working Days', 'Week Capacity'
  ];

  const tsvRows = [headers.join('\t')];
  data.forEach(row => {
    tsvRows.push([
      row.dateRange.replace(/\t/g, ' '),
      row.weekStartDate,
      row.date,
      row.title.replace(/\t/g, ' '),
      row.billableHours,
      row.nonBillableHours,
      row.workingDays,
      row.weekCapacity
    ].join('\t'));
  });

  return tsvRows.join('\n');
}

// Triggers a file download for an already-serialised TSV string by creating
// a temporary anchor element in the DOM, simulating a click, then cleaning
// up the created resources.
function downloadTSV(tsvContent, filename = 'timesheet_export_all_weeks.tsv') {
  const blob = new Blob([tsvContent], { type: 'text/tab-separated-values' });
  const url  = window.URL.createObjectURL(blob);
  const a    = document.createElement('a');
  a.href     = url;
  a.download = filename;
  document.body.appendChild(a);
  a.click();
  window.URL.revokeObjectURL(url);
  document.body.removeChild(a);
}

// ─────────────────────────────────────────────────────────────────

// Main entry point. Enables the split mode if available, collects all weeks,
// serialises the data to TSV, and triggers the file download.
async function runFullExport() {
  try {
    console.log('Starting full timesheet export...');

    await enableBillableSplit();

    const allData    = await exportAllTimesheetData();
    const tsvContent = exportAsTSV(allData);

    console.log(`Export completed successfully! Total entries: ${allData.length}`);
    downloadTSV(tsvContent);

    return allData;
  } catch (error) {
    console.error('Error during export:', error);
    return null;
  }
}

// Navigate to the EARLIEST week you want to export, then run:
runFullExport();