It should look like this:
[{"id":"ba560387.ab5f58","type":"subflow","name":"timerange","info":"Lets through or blocks a payload\nbased on a time range. This can\neither be configured through the\nenviroment variables in the node ui\nor as described below with a message\nthat has an override topic.\nIf in range the msg will be passed\nto the first output and otherwise\nto the second.\nThe start and stop time needs\nto be defined in an hh:mm format.\nThere is also a week array. The week\nstarts on monday so 4 for example is\nThursday. Payload will only be passed\non days that are in the array.\nOut of time range payloads will\nbe redirected to the second output.\nThe schedule can be overriden by injecting\na message with the topic of \"override\"\nthat contains a ```msg.payload``` object with the\nkeys of \"start\",\"stop\",\"days\" like\nthis:\n```\n{\n \"start\": \"10:00\",\n \"stop\": \"14:00\",\n \"days\": [\n 1,\n 2,\n 3,\n 4,\n 5,\n 6,\n 7\n ]\n}\n```\nStart and stop need to be strings in the hh:mm\nformat and days an array of numbers as\ndescribed above.\nThe override can be deleted by injecting a\nmsg.payload string \"reset\".","category":"","in":[{"x":100,"y":100,"wires":[{"id":"dffc7695.523d9"}]}],"out":[{"x":620,"y":60,"wires":[{"id":"262fc2bc.80defe","port":0}]},{"x":620,"y":140,"wires":[{"id":"262fc2bc.80defe","port":1}]}],"env":[{"name":"start","type":"str","value":"00:00","ui":{"icon":"font-awesome/fa-arrow-right","label":{"en-US":"from hh:mm"},"type":"input","opts":{"types":["str"]}}},{"name":"stop","type":"str","value":"00:00","ui":{"icon":"font-awesome/fa-circle","label":{"en-US":"until hh:mm"},"type":"input","opts":{"types":["str"]}}},{"name":"days","type":"json","value":"[1,2,3,4,5,6,7]","ui":{"icon":"font-awesome/fa-calendar","label":{"en-US":"days"},"type":"input","opts":{"types":["json"]}}}],"color":"#C7E9C0","inputLabels":["payload input"],"outputLabels":["in time range","out of time range"],"icon":"node-red/switch.svg","status":{"x":480,"y":200,"wires":[{"id":"935a8f78.31a528","port":0}]}},{"id":"262fc2bc.80defe","type":"function","z":"ba560387.ab5f58","name":"is in range?","func":"const schedule = flow.get(\"schedule\");\nlet start = env.get(\"start\");\nlet stop = env.get(\"stop\");\nlet days = env.get(\"days\");\nif(schedule !== undefined){\n start = schedule.start;\n stop = schedule.stop;\n days = schedule.days;\n}\nconst time = new Date();\nlet day = time.getDay();\nif(day === 0) day = 7;\nlet hour = String(time.getHours());\nlet minute = String(time.getMinutes());\nif(hour.length == 1) hour = \"0\" + hour;\nif(minute.length == 1) minute = \"0\" + minute;\nconst hmtime = hour + \":\" + minute;\nif(days.includes(day)){\n if(start == stop){\n return [msg, null];\n } else if(start > stop){\n if(hmtime >= start || hmtime < stop){\n return [msg, null];\n } else {\n return [null, msg];\n }\n } else if(hmtime >= start && hmtime < stop){\n return [msg, null];\n } else {\n return [null, msg];\n }\n} else {\n return null;\n}","outputs":2,"noerr":0,"x":450,"y":100,"wires":[[],[]]},{"id":"8d9145c9.1c5d38","type":"inject","z":"ba560387.ab5f58","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":true,"onceDelay":0.1,"x":170,"y":200,"wires":[["935a8f78.31a528"]]},{"id":"935a8f78.31a528","type":"function","z":"ba560387.ab5f58","name":"display rule","func":"const schedule = flow.get(\"schedule\");\nif(typeof schedule == \"object\"){\n const start = schedule.start;\n const stop = schedule.stop;\n const days = String(schedule.days);\n msg.payload = \"override: \" + start + \"-\" + stop + \"/\" + days;\n} else {\n const start = env.get(\"start\");\n const stop = env.get(\"stop\");\n const days = String(env.get(\"days\"));\n const override = false;\n msg.payload = start + \"-\" + stop + \"/\" + days;\n}\nreturn msg;","outputs":1,"noerr":0,"x":350,"y":200,"wires":[[]]},{"id":"dffc7695.523d9","type":"function","z":"ba560387.ab5f58","name":"check for override","func":"if(msg.topic == \"override\"){\n flow.set(\"schedule\",msg.payload);\n return [null, msg];\n} else if (msg.payload == \"reset\"){\n let reset;\n flow.set(\"schedule\",reset);\n return [null, msg];\n} else {\n return [msg, null];\n}","outputs":2,"noerr":0,"x":250,"y":100,"wires":[["262fc2bc.80defe"],["935a8f78.31a528"]]},{"id":"83c9b1eb.9d86f","type":"http request","z":"fdf1e896.b0783","name":"SOnoOff 160","method":"POST","ret":"txt","paytoqs":false,"url":"http://192.168.1.160/cm?cmnd=Power toggle","tls":"","persist":false,"proxy":"","authType":"","x":1130,"y":280,"wires":[["40d35633.1cfc78"]]},{"id":"bc86ddd1.9aaed","type":"inject","z":"fdf1e896.b0783","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":660,"y":320,"wires":[["7d4cfb7e.fa6c64"]]},{"id":"40d35633.1cfc78","type":"debug","z":"fdf1e896.b0783","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":1310,"y":280,"wires":[]},{"id":"997f988b.b10608","type":"debug","z":"fdf1e896.b0783","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":1130,"y":380,"wires":[]},{"id":"7d4cfb7e.fa6c64","type":"subflow:ba560387.ab5f58","z":"fdf1e896.b0783","name":"","env":[{"name":"start","value":"15:00","type":"str"},{"name":"stop","value":"16:00","type":"str"},{"name":"days","value":"[1,2,3,4,5]","type":"json"}],"x":880,"y":320,"wires":[["83c9b1eb.9d86f","7b3b5904.e1119"],["997f988b.b10608"]]},{"id":"7b3b5904.e1119","type":"debug","z":"fdf1e896.b0783","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":1130,"y":180,"wires":[]}]
Import this and have a look.
Dont edit inside the subfow. It works just like a node. Copy the code from the link and import it. You than have the timerange node in the subflow category of your palette on the left. Drag it into your workspace and click on it and you can configure time and days in the ui.
In the info tab on the right you find all informations about what you can do with it.
edit:
the functions will not work outside the subflow as they try to access environmental context of the subflow and set its status.
