In defer, there are shortcuts that I can use. e.g.
1h -> 1 hour later
1d -> 1 day later
1w -> 1 week later
How do you do minutes? 30m leads to 30 months later
I guess you can only type dates into the defer field. You can vote for a feature request by e-mailing omnifocus@omnigroup.com to suggest changing this.
