"in lunchtime" is correct and usable in written English.
It generally refers to the time of day when people eat lunch – typically between 12 and 2pm. For example, "I usually take a break from work in lunchtime and eat with my coworkers."
And because Paul couldn't speak, you had to assure the do-gooder that Paul wanted to have his arms held down - it allowed him to concentrate on opening his mouth - and that the "unhygienic" finger-poking was preferable to him lacerating his mouth on a spoon, and - oh, and just piss off, you ignorant, interfering cretin who is ruining what small pleasure Paul can take in lunchtime.
Daniel Boulud finding more glory in lunchtime sandwiches than in dinnertime lamb stew?
Stationed in his homeland, he acted, sang and did comedy monologues in lunchtime concerts, before being demobbed in 1946.
In lunchtime remarks to the Business Roundtable in Washington, Mr. Obama said: "We can probably solve this in about a week.
In lunchtime trading local time, the FTSE 100 had fallen almost 4.5% to 5,914 points, wiping more than £60bn off the index of leading UK shares.
The company's shares were up nearly 4% in lunchtime trading to 408p as the retailer beat market expectations for a sharper slowdown in the UK market.
We've also spent a lot of our own time on the multiplayer in lunchtimes and evenings and that's awesome too.
In what other forum can such things collide in a lunchtime chat than in the context of making a challenging play?
And for some reason the tennis center was seriously lacking in fans around lunchtime.
The results will be announced in a lunchtime ceremony on Saturday 29 August at Dovecot Studios in Edinburgh.
Read Jennifer Conlin's "In Everglades, Lunchtime with an Extra Guest" (June 8 , 2008 for more on kayaking in that national park.
