Time in seconds instead of time stamp

I have data from a model rocketry flight. The data is of the form , . Is it possible to use this time with influxdb instead of using the default timestamp?

Provided whatever takes the data out of Influx understands that this is more
like a numerical value than a real timestamp, InfluxDB will simply assume
you’re dealing with timestamps in January 1970 and not care beyond that.

Antony.