Here you go, this generates files with dates and time in my share folder (Node Red v.1.3.2):
[{"id":"8083de61.bcb","type":"tab","label":"Flow 1","disabled":false,"info":""},{"id":"d70b3fa6.6a8f08","type":"mqtt in","z":"8083de61.bcb","name":"Front Camera Motion!","topic":"homeassistant/binary_sensor/camera/front","qos":"0","broker":"f6099aae.0aa7f","x":160,"y":160,"wires":[["f186a94f.1fc25"]]},{"id":"42262f3a.f973f","type":"server-state-changed","z":"8083de61.bcb","name":"Front Camera Motion?","server":"d21bd910.f50568","entityidfilter":"script.frontcamdetecon","entityidfiltertype":"substring","outputinitially":true,"state_type":"str","haltifstate":"","halt_if_type":"str","halt_if_compare":"is","outputs":1,"output_only_on_state_change":false,"x":160,"y":40,"wires":[["4cfeecc7.9a83ec"]]},{"id":"192d027d.6f985e","type":"mqtt out","z":"8083de61.bcb","name":"Front Camera Motion!","topic":"homeassistant/binary_sensor/camera/front","qos":"0","retain":"","broker":"f6099aae.0aa7f","x":660,"y":40,"wires":[]},{"id":"4cfeecc7.9a83ec","type":"switch","z":"8083de61.bcb","name":"Camera Motion?","property":"payload","propertyType":"msg","rules":[{"t":"eq","v":"on","vt":"str"},{"t":"eq","v":"off","vt":"str"}],"checkall":"true","repair":false,"outputs":2,"x":430,"y":40,"wires":[["192d027d.6f985e"],["192d027d.6f985e"]]},{"id":"f186a94f.1fc25","type":"api-call-service","z":"8083de61.bcb","name":"Snapshot","server":"d21bd910.f50568","service_domain":"camera","service":"snapshot","data":"{\"entity_id\":\"camera.front_door\",\"filename\":\"/share/motioneye/Front/F-{{now().strftime('%Y-%m-%d')}}_{{now().strftime('%H-%M-%S')}}.jpg\"}","render_data":false,"mergecontext":"","output_location":"payload","output_location_type":"msg","x":380,"y":100,"wires":[["4932c724.3863d"]]},{"id":"4932c724.3863d","type":"debug","z":"8083de61.bcb","name":"Front","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"payload.data.filename","x":650,"y":100,"wires":[]},{"id":"31d587f9.cdd64","type":"inject","z":"8083de61.bcb","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"00 12 * * *","once":false,"onceDelay":0.1,"x":170,"y":100,"wires":[["f186a94f.1fc25"]]},{"id":"f6099aae.0aa7f","type":"mqtt-broker","z":"","name":"MQTT","broker":"192.168.1.7","port":"1883","clientid":"","usetls":false,"compatmode":true,"keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","closeTopic":"","closeQos":"0","closePayload":"","willTopic":"","willQos":"0","willPayload":""},{"id":"d21bd910.f50568","type":"server","z":"","name":"Home Assistant","legacy":false,"hassio":true,"rejectUnauthorizedCerts":true,"ha_boolean":"y|yes|true|on|home|open"}]
Thanks.