In Russian it is very common to speak about days of the current month without mentioning the name of the month. In English, as far as I remember, it is necessary to include the month.
- He was absent since the 4th of July. (Now is the 7th of July)
Can we rephrase that without mentioning the month? Something like:
- He was absent since the 4th day.
- He was absent since the 4th of current month.
Something informal would be great.
Best Answer
There is nothing wrong with using the day by itself:
Of course, one would hope that context or prior knowledge within the conversation would ensure the listener knows what month is being talked about. For example, if you asked me about my Christmas travel plans, I might say:
and it would be obvious that we are talking about the month of December.
You can also say:
The phrase of the month is often used generically like that, either to refer to the current month, or some other month that has already been referenced, either directly or indirectly.
As for the two you ask about:
Those both sound awkward to the native ear. Just saying since the 4th day seems to ask for more information, such as since the 4th day of school, or something like that. Using "current month" can work, but I'd expect to see an article: