You will need to edit the task in JSON mode - use this to create a 24 hour time scroller.

{"text": "00:00", "value": "00:00" },
{"text": "00:15", "value": "00:15" },
{"text": "00:30", "value": "00:30" },
{"text": "00:45", "value": "00:45" },
{"text": "01:00", "value": "01:00" },
{"text": "01:15", "value": "01:15" },
{"text": "01:30", "value": "01:30" },
{"text": "01:45", "value": "01:45" },
{"text": "02:00", "value": "02:00" },
{"text": "02:15", "value": "02:15" },
{"text": "02:30", "value": "02:30" },
{"text": "02:45", "value": "02:45" },
{"text": "03:00", "value": "03:00" },
{"text": "03:15", "value": "03:15" },
{"text": "03:30", "value": "03:30" },
{"text": "03:45", "value": "03:45" },
{"text": "04:00", "value": "04:00" },
{"text": "04:15", "value": "04:15" },
{"text": "04:30", "value": "04:30" },
{"text": "04:45", "value": "04:45" },
{"text": "05:00", "value": "05:00" },
{"text": "05:15", "value": "05:15" },
{"text": "05:30", "value": "05:30" },
{"text": "05:45", "value": "05:45" },
{"text": "06:00", "value": "06:00" },
{"text": "06:15", "value": "06:15" },
{"text": "06:30", "value": "06:30" },
{"text": "06:45", "value": "06:45" },
{"text": "07:00", "value": "07:00" },
{"text": "07:15", "value": "07:15" },
{"text": "07:30", "value": "07:30" },
{"text": "07:45", "value": "07:45" },
{"text": "08:00", "value": "08:00" },
{"text": "08:15", "value": "08:15" },
{"text": "08:30", "value": "08:30" },
{"text": "08:45", "value": "08:45" },
{"text": "09:00", "value": "09:00" },
{"text": "09:15", "value": "09:15" },
{"text": "09:30", "value": "09:30" },
{"text": "09:45", "value": "09:45" },
{"text": "10:00", "value": "10:00" },
{"text": "10:15", "value": "10:15" },
{"text": "10:30", "value": "10:30" },
{"text": "10:45", "value": "10:45" },
{"text": "11:00", "value": "11:00" },
{"text": "11:15", "value": "11:15" },
{"text": "11:30", "value": "11:30" },
{"text": "11:45", "value": "11:45" },
{"text": "12:00", "value": "12:00" },
{"text": "12:15", "value": "12:15" },
{"text": "12:30", "value": "12:30" },
{"text": "12:45", "value": "12:45" },
{"text": "13:00", "value": "13:00" },
{"text": "13:15", "value": "13:15" },
{"text": "13:30", "value": "13:30" },
{"text": "13:45", "value": "13:45" },
{"text": "14:00", "value": "14:00" },
{"text": "14:15", "value": "14:15" },
{"text": "14:30", "value": "14:30" },
{"text": "14:45", "value": "14:45" },
{"text": "15:00", "value": "15:00" },
{"text": "15:15", "value": "15:15" },
{"text": "15:30", "value": "15:30" },
{"text": "15:45", "value": "15:45" },
{"text": "16:00", "value": "16:00" },
{"text": "16:15", "value": "16:15" },
{"text": "16:30", "value": "16:30" },
{"text": "16:45", "value": "16:45" },
{"text": "17:00", "value": "17:00" },
{"text": "17:15", "value": "17:15" },
{"text": "17:30", "value": "17:30" },
{"text": "17:45", "value": "17:45" },
{"text": "18:00", "value": "18:00" },
{"text": "18:15", "value": "18:15" },
{"text": "18:30", "value": "18:30" },
{"text": "18:45", "value": "18:45" },
{"text": "19:00", "value": "19:00" },
{"text": "19:15", "value": "19:15" },
{"text": "19:30", "value": "19:30" },
{"text": "19:45", "value": "19:45" },
{"text": "20:00", "value": "20:00" },
{"text": "20:15", "value": "20:15" },
{"text": "20:30", "value": "20:30" },
{"text": "20:45", "value": "20:45" },
{"text": "21:00", "value": "21:00" },
{"text": "21:15", "value": "21:15" },
{"text": "21:30", "value": "21:30" },
{"text": "21:45", "value": "21:45" },
{"text": "22:00", "value": "22:00" },
{"text": "22:15", "value": "22:15" },
{"text": "22:30", "value": "22:30" },
{"text": "22:45", "value": "22:45" },
{"text": "23:00", "value": "23:00" },
{"text": "23:15", "value": "23:15" },
{"text": "23:30", "value": "23:30" },
{"text": "23:45", "value": "23:45" },
{"text": "00:00", "value": "00:00" },
{"text": "00:15", "value": "00:15" },
{"text": "00:30", "value": "00:30" },
{"text": "00:45", "value": "00:45" },
{"text": "01:00", "value": "01:00" },
{"text": "01:15", "value": "01:15" },
{"text": "01:30", "value": "01:30" },
{"text": "01:45", "value": "01:45" },
{"text": "02:00", "value": "02:00" },
{"text": "02:15", "value": "02:15" },
{"text": "02:30", "value": "02:30" },
{"text": "02:45", "value": "02:45" },
{"text": "03:00", "value": "03:00" },
{"text": "03:15", "value": "03:15" },
{"text": "03:30", "value": "03:30" },
{"text": "03:45", "value": "03:45" },
{"text": "04:00", "value": "04:00" },
{"text": "04:15", "value": "04:15" },
{"text": "04:30", "value": "04:30" },
{"text": "04:45", "value": "04:45" },
{"text": "05:00", "value": "05:00" },
{"text": "05:15", "value": "05:15" },
{"text": "05:30", "value": "05:30" },
{"text": "05:45", "value": "05:45" },
{"text": "06:00", "value": "06:00" },
{"text": "06:15", "value": "06:15" },
{"text": "06:30", "value": "06:30" },
{"text": "06:45", "value": "06:45" },
{"text": "07:00", "value": "07:00" },
{"text": "07:15", "value": "07:15" },
{"text": "07:30", "value": "07:30" },
{"text": "07:45", "value": "07:45" },
{"text": "08:00", "value": "08:00" },
{"text": "08:15", "value": "08:15" },
{"text": "08:30", "value": "08:30" },
{"text": "08:45", "value": "08:45" },
{"text": "09:00", "value": "09:00" },
{"text": "09:15", "value": "09:15" },
{"text": "09:30", "value": "09:30" },
{"text": "09:45", "value": "09:45" },
{"text": "10:00", "value": "10:00" },
{"text": "10:15", "value": "10:15" },
{"text": "10:30", "value": "10:30" },
{"text": "10:45", "value": "10:45" },
{"text": "11:00", "value": "11:00" },
{"text": "11:15", "value": "11:15" },
{"text": "11:30", "value": "11:30" },
{"text": "11:45", "value": "11:45" },
{"text": "12:00", "value": "12:00" },
{"text": "12:15", "value": "12:15" },
{"text": "12:30", "value": "12:30" },
{"text": "12:45", "value": "12:45" },
{"text": "13:00", "value": "13:00" },
{"text": "13:15", "value": "13:15" },
{"text": "13:30", "value": "13:30" },
{"text": "13:45", "value": "13:45" },
{"text": "14:00", "value": "14:00" },
{"text": "14:15", "value": "14:15" },
{"text": "14:30", "value": "14:30" },
{"text": "14:45", "value": "14:45" },
{"text": "15:00", "value": "15:00" },
{"text": "15:15", "value": "15:15" },
{"text": "15:30", "value": "15:30" },
{"text": "15:45", "value": "15:45" },
{"text": "16:00", "value": "16:00" },
{"text": "16:15", "value": "16:15" },
{"text": "16:30", "value": "16:30" },
{"text": "16:45", "value": "16:45" },
{"text": "17:00", "value": "17:00" },
{"text": "17:15", "value": "17:15" },
{"text": "17:30", "value": "17:30" },
{"text": "17:45", "value": "17:45" },
{"text": "18:00", "value": "18:00" },
{"text": "18:15", "value": "18:15" },
{"text": "18:30", "value": "18:30" },
{"text": "18:45", "value": "18:45" },
{"text": "19:00", "value": "19:00" },
{"text": "19:15", "value": "19:15" },
{"text": "19:30", "value": "19:30" },
{"text": "19:45", "value": "19:45" },
{"text": "20:00", "value": "20:00" },
{"text": "20:15", "value": "20:15" },
{"text": "20:30", "value": "20:30" },
{"text": "20:45", "value": "20:45" },
{"text": "21:00", "value": "21:00" },
{"text": "21:15", "value": "21:15" },
{"text": "21:30", "value": "21:30" },
{"text": "21:45", "value": "21:45" },
{"text": "22:00", "value": "22:00" },
{"text": "22:15", "value": "22:15" },
{"text": "22:30", "value": "22:30" },
{"text": "22:45", "value": "22:45" },
{"text": "23:00", "value": "23:00" },
{"text": "23:15", "value": "23:15" },
{"text": "23:30", "value": "23:30" },
{"text": "23:45", "value": "23:45" }


Use this to create a complete list of countries in alphabetical order with the offical three letter code:

{"text": "Afghanistan", "value": "AFG"},
{"text": "Albania", "value": "ALB"},
{"text": "Algeria", "value": "DZA"},
{"text": "American Samoa", "value": "ASM"},
{"text": "Andorra", "value": "AND"},
{"text": "Angola", "value": "AGO"},
{"text": "Anguilla", "value": "AIA"},
{"text": "Antarctica", "value": "ATA"},
{"text": "Antigua and Barbuda", "value": "ATG"},
{"text": "Argentina", "value": "ARG"},
{"text": "Armenia", "value": "ARM"},
{"text": "Aruba", "value": "ABW"},
{"text": "Australia", "value": "AUS"},
{"text": "Austria", "value": "AUT"},
{"text": "Azerbaijan", "value": "AZE"},
{"text": "Bahamas (the)", "value": "BHS"},
{"text": "Bahrain", "value": "BHR"},
{"text": "Bangladesh", "value": "BGD"},
{"text": "Barbados", "value": "BRB"},
{"text": "Belarus", "value": "BLR"},
{"text": "Belgium", "value": "BEL"},
{"text": "Belize", "value": "BLZ"},
{"text": "Benin", "value": "BEN"},
{"text": "Bermuda", "value": "BMU"},
{"text": "Bhutan", "value": "BTN"},
{"text": "Bolivia (Plurinational State of)", "value": "BOL"},
{"text": "Bonaire, Sint Eustatius and Saba", "value": "BES"},
{"text": "Bosnia and Herzegovina", "value": "BIH"},
{"text": "Botswana", "value": "BWA"},
{"text": "Bouvet Island", "value": "BVT"},
{"text": "Brazil", "value": "BRA"},
{"text": "British Indian Ocean Territory (the)", "value": "IOT"},
{"text": "Brunei Darussalam", "value": "BRN"},
{"text": "Bulgaria", "value": "BGR"},
{"text": "Burkina Faso", "value": "BFA"},
{"text": "Burundi", "value": "BDI"},
{"text": "Cabo Verde", "value": "CPV"},
{"text": "Cambodia", "value": "KHM"},
{"text": "Cameroon", "value": "CMR"},
{"text": "Canada", "value": "CAN"},
{"text": "Cayman Islands (the)", "value": "CYM"},
{"text": "Central African Republic (the)", "value": "CAF"},
{"text": "Chad", "value": "TCD"},
{"text": "Chile", "value": "CHL"},
{"text": "China", "value": "CHN"},
{"text": "Christmas Island", "value": "CXR"},
{"text": "Cocos (Keeling) Islands (the)", "value": "CCK"},
{"text": "Colombia", "value": "COL"},
{"text": "Comoros (the)", "value": "COM"},
{"text": "Congo (the Democratic Republic of the)", "value": "COD"},
{"text": "Congo (the)", "value": "COG"},
{"text": "Cook Islands (the)", "value": "COK"},
{"text": "Costa Rica", "value": "CRI"},
{"text": "Croatia", "value": "HRV"},
{"text": "Cuba", "value": "CUB"},
{"text": "Curaçao", "value": "CUW"},
{"text": "Cyprus", "value": "CYP"},
{"text": "Czechia", "value": "CZE"},
{"text": "Côte d'Ivoire", "value": "CIV"},
{"text": "Denmark", "value": "DNK"},
{"text": "Djibouti", "value": "DJI"},
{"text": "Dominica", "value": "DMA"},
{"text": "Dominican Republic (the)", "value": "DOM"},
{"text": "Ecuador", "value": "ECU"},
{"text": "Egypt", "value": "EGY"},
{"text": "El Salvador", "value": "SLV"},
{"text": "Equatorial Guinea", "value": "GNQ"},
{"text": "Eritrea", "value": "ERI"},
{"text": "Estonia", "value": "EST"},
{"text": "Eswatini", "value": "SWZ"},
{"text": "Ethiopia", "value": "ETH"},
{"text": "Falkland Islands (the) [Malvinas]", "value": "FLK"},
{"text": "Faroe Islands (the)", "value": "FRO"},
{"text": "Fiji", "value": "FJI"},
{"text": "Finland", "value": "FIN"},
{"text": "France", "value": "FRA"},
{"text": "French Guiana", "value": "GUF"},
{"text": "French Polynesia", "value": "PYF"},
{"text": "French Southern Territories (the)", "value": "ATF"},
{"text": "Gabon", "value": "GAB"},
{"text": "Gambia (the)", "value": "GMB"},
{"text": "Georgia", "value": "GEO"},
{"text": "Germany", "value": "DEU"},
{"text": "Ghana", "value": "GHA"},
{"text": "Gibraltar", "value": "GIB"},
{"text": "Greece", "value": "GRC"},
{"text": "Greenland", "value": "GRL"},
{"text": "Grenada", "value": "GRD"},
{"text": "Guadeloupe", "value": "GLP"},
{"text": "Guam", "value": "GUM"},
{"text": "Guatemala", "value": "GTM"},
{"text": "Guernsey", "value": "GGY"},
{"text": "Guinea", "value": "GIN"},
{"text": "Guinea-Bissau", "value": "GNB"},
{"text": "Guyana", "value": "GUY"},
{"text": "Haiti", "value": "HTI"},
{"text": "Heard Island and McDonald Islands", "value": "HMD"},
{"text": "Holy See (the)", "value": "VAT"},
{"text": "Honduras", "value": "HND"},
{"text": "Hong Kong", "value": "HKG"},
{"text": "Hungary", "value": "HUN"},
{"text": "Iceland", "value": "ISL"},
{"text": "India", "value": "IND"},
{"text": "Indonesia", "value": "IDN"},
{"text": "Iran (Islamic Republic of)", "value": "IRN"},
{"text": "Iraq", "value": "IRQ"},
{"text": "Ireland", "value": "IRL"},
{"text": "Isle of Man", "value": "IMN"},
{"text": "Israel", "value": "ISR"},
{"text": "Italy", "value": "ITA"},
{"text": "Jamaica", "value": "JAM"},
{"text": "Japan", "value": "JPN"},
{"text": "Jersey", "value": "JEY"},
{"text": "Jordan", "value": "JOR"},
{"text": "Kazakhstan", "value": "KAZ"},
{"text": "Kenya", "value": "KEN"},
{"text": "Kiribati", "value": "KIR"},
{"text": "Korea (the Democratic People's Republic of)", "value": "PRK"},
{"text": "Korea (the Republic of)", "value": "KOR"},
{"text": "Kuwait", "value": "KWT"},
{"text": "Kyrgyzstan", "value": "KGZ"},
{"text": "Lao People's Democratic Republic (the)", "value": "LAO"},
{"text": "Latvia", "value": "LVA"},
{"text": "Lebanon", "value": "LBN"},
{"text": "Lesotho", "value": "LSO"},
{"text": "Liberia", "value": "LBR"},
{"text": "Libya", "value": "LBY"},
{"text": "Liechtenstein", "value": "LIE"},
{"text": "Lithuania", "value": "LTU"},
{"text": "Luxembourg", "value": "LUX"},
{"text": "Macao", "value": "MAC"},
{"text": "Madagascar", "value": "MDG"},
{"text": "Malawi", "value": "MWI"},
{"text": "Malaysia", "value": "MYS"},
{"text": "Maldives", "value": "MDV"},
{"text": "Mali", "value": "MLI"},
{"text": "Malta", "value": "MLT"},
{"text": "Marshall Islands (the)", "value": "MHL"},
{"text": "Martinique", "value": "MTQ"},
{"text": "Mauritania", "value": "MRT"},
{"text": "Mauritius", "value": "MUS"},
{"text": "Mayotte", "value": "MYT"},
{"text": "Mexico", "value": "MEX"},
{"text": "Micronesia (Federated States of)", "value": "FSM"},
{"text": "Moldova (the Republic of)", "value": "MDA"},
{"text": "Monaco", "value": "MCO"},
{"text": "Mongolia", "value": "MNG"},
{"text": "Montenegro", "value": "MNE"},
{"text": "Montserrat", "value": "MSR"},
{"text": "Morocco", "value": "MAR"},
{"text": "Mozambique", "value": "MOZ"},
{"text": "Myanmar", "value": "MMR"},
{"text": "Namibia", "value": "NAM"},
{"text": "Nauru", "value": "NRU"},
{"text": "Nepal", "value": "NPL"},
{"text": "Netherlands (the)", "value": "NLD"},
{"text": "New Caledonia", "value": "NCL"},
{"text": "New Zealand", "value": "NZL"},
{"text": "Nicaragua", "value": "NIC"},
{"text": "Niger (the)", "value": "NER"},
{"text": "Nigeria", "value": "NGA"},
{"text": "Niue", "value": "NIU"},
{"text": "Norfolk Island", "value": "NFK"},
{"text": "Northern Mariana Islands (the)", "value": "MNP"},
{"text": "Norway", "value": "NOR"},
{"text": "Oman", "value": "OMN"},
{"text": "Pakistan", "value": "PAK"},
{"text": "Palau", "value": "PLW"},
{"text": "Palestine, State of", "value": "PSE"},
{"text": "Panama", "value": "PAN"},
{"text": "Papua New Guinea", "value": "PNG"},
{"text": "Paraguay", "value": "PRY"},
{"text": "Peru", "value": "PER"},
{"text": "Philippines (the)", "value": "PHL"},
{"text": "Pitcairn", "value": "PCN"},
{"text": "Poland", "value": "POL"},
{"text": "Portugal", "value": "PRT"},
{"text": "Puerto Rico", "value": "PRI"},
{"text": "Qatar", "value": "QAT"},
{"text": "Republic of North Macedonia", "value": "MKD"},
{"text": "Romania", "value": "ROU"},
{"text": "Russian Federation (the)", "value": "RUS"},
{"text": "Rwanda", "value": "RWA"},
{"text": "Réunion", "value": "REU"},
{"text": "Saint Barthélemy", "value": "BLM"},
{"text": "Saint Helena, Ascension and Tristan da Cunha", "value": "SHN"},
{"text": "Saint Kitts and Nevis", "value": "KNA"},
{"text": "Saint Lucia", "value": "LCA"},
{"text": "Saint Martin (French part)", "value": "MAF"},
{"text": "Saint Pierre and Miquelon", "value": "SPM"},
{"text": "Saint Vincent and the Grenadines", "value": "VCT"},
{"text": "Samoa", "value": "WSM"},
{"text": "San Marino", "value": "SMR"},
{"text": "Sao Tome and Principe", "value": "STP"},
{"text": "Saudi Arabia", "value": "SAU"},
{"text": "Senegal", "value": "SEN"},
{"text": "Serbia", "value": "SRB"},
{"text": "Seychelles", "value": "SYC"},
{"text": "Sierra Leone", "value": "SLE"},
{"text": "Singapore", "value": "SGP"},
{"text": "Sint Maarten (Dutch part)", "value": "SXM"},
{"text": "Slovakia", "value": "SVK"},
{"text": "Slovenia", "value": "SVN"},
{"text": "Solomon Islands", "value": "SLB"},
{"text": "Somalia", "value": "SOM"},
{"text": "South Africa", "value": "ZAF"},
{"text": "South Georgia and the South Sandwich Islands", "value": "SGS"},
{"text": "South Sudan", "value": "SSD"},
{"text": "Spain", "value": "ESP"},
{"text": "Sri Lanka", "value": "LKA"},
{"text": "Sudan (the)", "value": "SDN"},
{"text": "Suriname", "value": "SUR"},
{"text": "Svalbard and Jan Mayen", "value": "SJM"},
{"text": "Sweden", "value": "SWE"},
{"text": "Switzerland", "value": "CHE"},
{"text": "Syrian Arab Republic", "value": "SYR"},
{"text": "Taiwan (Province of China)", "value": "TWN"},
{"text": "Tajikistan", "value": "TJK"},
{"text": "Tanzania, United Republic of", "value": "TZA"},
{"text": "Thailand", "value": "THA"},
{"text": "Timor-Leste", "value": "TLS"},
{"text": "Togo", "value": "TGO"},
{"text": "Tokelau", "value": "TKL"},
{"text": "Tonga", "value": "TON"},
{"text": "Trinidad and Tobago", "value": "TTO"},
{"text": "Tunisia", "value": "TUN"},
{"text": "Turkey", "value": "TUR"},
{"text": "Turkmenistan", "value": "TKM"},
{"text": "Turks and Caicos Islands (the)", "value": "TCA"},
{"text": "Tuvalu", "value": "TUV"},
{"text": "Uganda", "value": "UGA"},
{"text": "Ukraine", "value": "UKR"},
{"text": "United Arab Emirates (the)", "value": "ARE"},
{"text": "United Kingdom of Great Britain and Northern Ireland (the)", "value": "GBR"},
{"text": "United States Minor Outlying Islands (the)", "value": "UMI"},
{"text": "United States of America (the)", "value": "USA"},
{"text": "Uruguay", "value": "URY"},
{"text": "Uzbekistan", "value": "UZB"},
{"text": "Vanuatu", "value": "VUT"},
{"text": "Venezuela (Bolivarian Republic of)", "value": "VEN"},
{"text": "Viet Nam", "value": "VNM"},
{"text": "Virgin Islands (British)", "value": "VGB"},
{"text": "Virgin Islands (U.S.)", "value": "VIR"},
{"text": "Wallis and Futuna", "value": "WLF"},
{"text": "Western Sahara", "value": "ESH"},
{"text": "Yemen", "value": "YEM"},
{"text": "Zambia", "value": "ZMB"},
{"text": "Zimbabwe", "value": "ZWE"}



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