Ah yes, been there, been burned by that... but the node-red-contrib-moment
node is .
Simon, you can get the date format you want by specifying the format ddd D MMM YYYY
Here is an example flow:
[{"id":"3ad33994.9a7d56","type":"inject","z":"58c8eb7a.5496c4","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":860,"y":2920,"wires":[["f7be760e.adf2e8"]]},{"id":"f7be760e.adf2e8","type":"moment","z":"58c8eb7a.5496c4","name":"","topic":"","input":"","inputType":"msg","inTz":"America/New_York","adjAmount":0,"adjType":"days","adjDir":"add","format":"ddd D MMM YYYY","locale":"en_US","output":"","outputType":"msg","outTz":"America/New_York","x":980,"y":2960,"wires":[["b295243a.29e318"]]},{"id":"b295243a.29e318","type":"debug","z":"58c8eb7a.5496c4","name":"","active":true,"tosidebar":false,"console":false,"tostatus":true,"complete":"payload","x":1100,"y":3000,"wires":[]}]
(sorry, I know it doesn't actually answer the question about how to use simpletime...)