time_tradingday - PineScript Variable

time_tradingday

Overview

time_tradingday returns the timestamp for 00:00 UTC of the trading day that contains the current bar. This is especially useful on overnight markets where the session spans two calendar days.

Remarks

• Unlike time, this value always aligns to 00:00 UTC of the trading day, even if the session opens the prior evening.
• On resolutions above "1D", the value corresponds to the final trading day captured inside the aggregated bar.
• Useful for grouping bars by trading day or aligning session-based calculations across symbols.

Example

//@version=5
indicator("Trading day comparison", overlay=false)

dayOfWeekExchange = dayofweek(time)
dayOfWeekTrading  = dayofweek(time_tradingday, "UTC+0")

plot(dayOfWeekExchange, "Exchange day", color=color.blue)
plot(dayOfWeekTrading, "Trading day UTC", color=color.teal)

bgcolor(dayOfWeekExchange != dayOfWeekTrading ? color.new(color.orange, 85) : na,
    title="Overnight session spillover")

See Also

• time
• time_close