See the generated 'categories' for the x-axis. Ticks are for each day, each new hour and in minutes in between. If you open 'view-source' in the web browser, you can see it in the created html file
Code: Select all
xAxis: {
tickInterval: 9,
categories: ['2015-03-31', '09', '10', '11', '12', '13', '13', '15', '16', '17', '18', '19', '20', '20', '22', '23', '24', '25', '25', '27', '28', '29', '30', '31', '31', '32', '34', '35', '36', '38', '39', '39', '41', '42', '43', '44', '45', '48', '49', '50', '50', '52', '53', '54', '55', '56', '57', '57', '58', '16:00', '01', '02', '03', '04', '04', '05', '07', '07', '09', '10', '11', '12', '12', '13', '15', '16', '17', '17', '18', '20', '21', '22', '23', '24', '26', '27', '28', '29', '29', '30', '33', '35', '36', '37', '38', '39', '39', '41', '42', '43', '44', '45', '46', '46', '47', '49', '50', '51', '52', '53', '53', '54', '56', '57', '58', '59', '17:00', '00', '01', '03', '04', '05', '06', '07', '07', '09', '10', '11', '12', '13', '13', '14', '16', '17', '18', '19', '19', '20', '22', '23', '24', '25', '26', '26', '27', '29', '30', '31', '32', '32', '33', '35', '36', '37', '38', '39', '40', '42', '43', '44', '45', '46', '47', '49', '50', '51', '52', '52', '53', '55', '56', '57', '58', '59', '59', '18:00', '01', '03', '04', '05', '05', '06', '07', '08', '10', '11', '12', '12', '13', '14', '16', '17', '18', '19', '19', '20', '22', '23', '24', '25', '26', '26', '27', '29', '30', '31', '31', '32', '33', '35', '36', '37', '38', '38', '39', '41', '41', '43', '44', '45', '46', '46', '47', '48', '49', '51', '52', '53', '54', '54', '55', '56', '58', '59', '19:00', '00', '01', '02', '03', '05', '06', '07', '08', '08', '09', '10', '11', '13', '14', '15', '15', '16', '18', '19', '20', '22', '23', '24', '25', '25', '26', '27', '29', '30', '31', '32', '34', '35', '35', '36', '37', '39', '40', '41', '42', '42', '43', '44', '46', '47', '48', '48', '49', '50', '51', '53', '54', '55', '55', '56', '57', '59', '20:00', '01', '02', '02', '03', '04', '06', '07', '08', '08', '09', '10', '12', '13', '14', '14', '15', '16', '18', '19', '20', '20', '21', '22', '23', '25', '26', '27', '29', '30', '31', '31', '32', '33', '34', '36', '37', '37', '38', '39', '40', '42', '43', '43', '44', '45', '46', '48', '49', '49', '50', '51', '53', '54', '55', '55', '56', '57', '58', '21:00', '01', '02', '02', '03', '04', '06', '07', '07', '08', '09', '10', '12', '13', '14', '15', '17', '18', '19', '19', '20', '21', '22', '24', '25', '26', '26', '28', '30', '30', '31', '32', '33', '35', '35', '36', '37', '38', '40', '41', '42', '43', '44', '45', '47', '48', '48', '49', '50', '52', '53', '53', '54', '55', '56', '57', '58', '22:00', '01', '01', '02', '03', '04', '05', '06', '08', '08', '09', '10', '11', '12', '14', '14', '15', '16', '17', '19', '20', '20', '21', '22', '24', '25', '26', '26', '27', '28', '29', '30', '31', '33', '34', '34', '35', '36', '37', '39', '40', '40', '41', '42', '43', '44', '45', '46', '49', '50', '52', '53', '53', '54', '55', '56', '57', '58', '23:00', '00', '01', '02', '03', '05', '05', '06', '07', '08', '09', '11', '11', '12', '13', '14', '15', '16', '18', '18', '19', '20', '21', '23', '23', '24', '25', '26', '27', '29', '29', '30', '31', '32', '33', '34', '36', '36', '37', '38', '39', '40', '42', '42', '43', '44', '45', '46', '48', '48', '49', '50', '51', '52', '53', '55', '55', '57', '58', '59', '2015-04-01', '02', '03', '04', '05', '07', '07', '08', '09', '10', '11', '12', '13', '14', '15', '16', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '31', '31', '32', '33', '34', '35', '36', '38', '38', '39', '40', '41', '43', '43', '44', '45', '46', '47', '48', '50', '50', '51', '52', '53', '54', '56', '56', '57', '58', '59', '01:00', '02', '02', '03', '04', '05', '07', '07', '08', '09', '10', '11', '12', '13',
A problem is we need a tick for each value to be displayed, otherwise I could have lived with less ticks for the x-axis